Actions where the constitutional or statutory basis is actively debated — including broad use of delegated powers, emergency declarations, and signing statements.
Showing actions from 2021–2025. View all presidents →
This signing statement ("Statement on Signing the Servicemember Quality of Life Improvement and National Defense Authorization Act for Fiscal Year 2025") was issued alongside a bill the President signed into law. The President's stated concerns: "discharge his responsibility to protect the national security." Signing statements allow presidents to express constitutional or policy objections to specific provisions of legislation they have just signed. Their legal weight and constitutional propriety have been contested since the practice became common in the 1980s.
Critics — including the American Bar Association — argue that using signing statements to announce an intent to not enforce portions of a law effectively creates a line-item veto, which the Supreme Court ruled unconstitutional in Clinton v. City of New York (1998). Defenders argue presidents have a duty to identify constitutional concerns and that signing statements are a legitimate form of executive interpretation. The constitutional propriety depends on whether this specific statement announces non-enforcement or merely records the President's views.
This signing statement ("Statement on Signing the Congressional Budget Office Data Sharing Act") was issued alongside a bill the President signed into law. Signing statements allow presidents to express constitutional or policy objections to specific provisions of legislation they have just signed. Their legal weight and constitutional propriety have been contested since the practice became common in the 1980s.
Critics — including the American Bar Association — argue that using signing statements to announce an intent to not enforce portions of a law effectively creates a line-item veto, which the Supreme Court ruled unconstitutional in Clinton v. City of New York (1998). Defenders argue presidents have a duty to identify constitutional concerns and that signing statements are a legitimate form of executive interpretation. The constitutional propriety depends on whether this specific statement announces non-enforcement or merely records the President's views.
This proclamation ("To Further Facilitate Positive Adjustment to Competition From Imports of Certain Crystalline Silicon Photovoltaic Cells (Whether or Not Partially or Fully Assembled Into Other Products)") imposes or modifies tariffs on From. The stated rationale is: "the domestic industry has made a positive adjustment to import competition." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This proclamation ("Proclamation 10771-Adjusting Imports of Steel Into the United States") imposes or modifies tariffs. The stated rationale is: "establish certain modifications to the duty rate on imports of steel articles, subchapter III of chapter 99 of the HTSUS is modified as provided in the Annex to this proclamation and any subsequent proclamations regarding such steel articles." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This signing statement ("Statement on Signing the FAA Reauthorization Act of 2024") was issued alongside a bill the President signed into law. Signing statements allow presidents to express constitutional or policy objections to specific provisions of legislation they have just signed. Their legal weight and constitutional propriety have been contested since the practice became common in the 1980s.
Critics — including the American Bar Association — argue that using signing statements to announce an intent to not enforce portions of a law effectively creates a line-item veto, which the Supreme Court ruled unconstitutional in Clinton v. City of New York (1998). Defenders argue presidents have a duty to identify constitutional concerns and that signing statements are a legitimate form of executive interpretation. The constitutional propriety depends on whether this specific statement announces non-enforcement or merely records the President's views.
This proclamation ("Proclamation 10690-Adjusting Imports of Aluminum Into the United States") imposes or modifies tariffs. The stated rationale is: "the threatened impairment to the national security by aluminum articles imported from the EU." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This proclamation ("Proclamation 10691-Adjusting Imports of Steel Into the United States") imposes or modifies tariffs. The stated rationale is: "the threatened impairment to the national security by imports of steel articles from these countries." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This proclamation ("Proclamation 10685-Suspension of Entry as Immigrants and Nonimmigrants of Persons Enabling Corruption") imposes or modifies tariffs on of Entry as Immigrants and Nonimmigrants of Persons Enabling Corruption. The stated rationale is: "NSSM–1), I established the fight against global corruption as a core national security interest, stating that corruption threatens United States national security, economic equity, global anti-poverty and development efforts, and democracy itself." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This proclamation ("Proclamation 10575-Revoking the Air Travel COVID-19 Vaccination Requirement") restricts or modifies entry into the United States. The stated basis: "themselves and those around them." Section 212(f) of the Immigration and Nationality Act grants the President authority to suspend entry of aliens whose presence would be "detrimental to the interests of the United States." The Supreme Court upheld this broad authority in Trump v. Hawaii (2018).
While the statutory authority is expansive, courts scrutinize immigration proclamations for discrimination, rational basis, and fidelity to the underlying statute. The constitutional question often turns on whether the proclamation is implementing existing immigration law (acceptable) or effectively creating new categories and policies Congress did not authorize (potentially overreaching).
Executive Order 14098 ("Executive Order 14098-Imposing Sanctions on Certain Persons Destabilizing Sudan and Undermining the Goal of a Democratic Transition") imposes sanctions or economic restrictions. The President's stated rationale: "because of the ability to transfer funds or other assets instantaneously, prior notice to such persons of measures to be taken pursuant to this order would render those measures ineffectual." The International Emergency Economic Powers Act (IEEPA) grants the President broad authority to regulate international economic transactions when a national emergency has been declared. Presidents from both parties have used IEEPA extensively for foreign policy sanctions.
While the statutory authority is well-established, IEEPA's breadth has drawn constitutional criticism. The statute delegates sweeping power to the President during emergencies that can last for years or decades. The non-delegation doctrine questions whether Congress can transfer such broad economic regulatory authority to the executive branch. Despite these concerns, courts have generally deferred to presidential sanctions decisions.
Executive Order 14096 ("Executive Order 14096-Revitalizing Our Nation's Commitment to Environmental Justice for All") directs energy or environmental policy. The President's stated rationale: "advance environmental justice, it is hereby ordered as follows: Section 1 ." Executive orders in this domain typically direct agencies like the EPA, Department of Energy, and Interior Department on how to implement existing environmental statutes — the Clean Air Act, Clean Water Act, Endangered Species Act, and energy-related laws.
The constitutional question depends on whether the order directs implementation within statutory bounds (acceptable) or attempts to rewrite regulatory schemes in ways Congress did not authorize (overreaching). Both Democratic and Republican administrations have used executive orders to shift environmental policy, and courts have struck down orders that exceed agency statutory authority or ignore required rulemaking procedures.
This signing statement ("Statement on Signing the COVID-19 Origin Act of 2023") was issued alongside a bill the President signed into law. The President's stated concerns: "against the disclosure of information that would harm national security." Signing statements allow presidents to express constitutional or policy objections to specific provisions of legislation they have just signed. Their legal weight and constitutional propriety have been contested since the practice became common in the 1980s.
Critics — including the American Bar Association — argue that using signing statements to announce an intent to not enforce portions of a law effectively creates a line-item veto, which the Supreme Court ruled unconstitutional in Clinton v. City of New York (1998). Defenders argue presidents have a duty to identify constitutional concerns and that signing statements are a legitimate form of executive interpretation. The constitutional propriety depends on whether this specific statement announces non-enforcement or merely records the President's views.
This proclamation ("Proclamation 10523-Increasing Duties on Certain Articles From the Russian Federation") imposes or modifies tariffs on Certain Articles From the Russian Federation. Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
Executive Order 14089 ("Executive Order 14089-Establishing the President's Advisory Council on African Diaspora Engagement in the United States") restructures or establishes federal entities. The President has authority to manage the executive branch under Article II, including creating task forces, councils, and working groups within the White House. However, creating independent agencies with binding regulatory authority, or fundamentally restructuring congressionally created departments, typically requires legislative authorization.
The Reorganization Act historically provided a framework for executive reorganization subject to congressional review. Current reorganization authority is more limited. The constitutionality depends on whether this order creates White House advisory bodies (acceptable) or attempts to restructure agencies in ways that conflict with their enabling statutes (questionable).
Executive Order 14082 ("Executive Order 14082-Implementation of the Energy and Infrastructure Provisions of the Inflation Reduction Act of 2022") directs energy or environmental policy. Executive orders in this domain typically direct agencies like the EPA, Department of Energy, and Interior Department on how to implement existing environmental statutes — the Clean Air Act, Clean Water Act, Endangered Species Act, and energy-related laws.
The constitutional question depends on whether the order directs implementation within statutory bounds (acceptable) or attempts to rewrite regulatory schemes in ways Congress did not authorize (overreaching). Both Democratic and Republican administrations have used executive orders to shift environmental policy, and courts have struck down orders that exceed agency statutory authority or ignore required rulemaking procedures.
This proclamation ("Proclamation 10406-Adjusting Imports of Steel Into the United States") imposes or modifies tariffs. The stated rationale is: "the threatened impairment to the national security posed by imports of steel articles and derivative steel articles from the UK." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This proclamation ("Proclamation 10403-Adjusting Imports of Steel Into the United States") imposes or modifies tariffs. The stated rationale is: "the global excess capacity for producing steel." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
This proclamation ("Proclamation 10371-Declaration of National Emergency and Invocation of Emergency Authority Relating to the Regulation of the Anchorage and Movement of Russian-Affiliated Vessels to United States Ports") invokes emergency or national security authority. The President's stated rationale: "Russian Federation to continue the premeditated, unjustified, unprovoked, and brutal war against Ukraine constitute a national emergency by reason of a disturbance or threatened disturbance of international relations of the United States." The National Emergencies Act (1976) and the International Emergency Economic Powers Act (IEEPA) grant the President significant powers when a national emergency is declared, including the authority to impose sanctions, restrict transactions, and direct economic responses.
Congress can terminate a national emergency by joint resolution, but that requires overriding a presidential veto — effectively a two-thirds supermajority. Critics argue this inverts the constitutional design, where emergency powers should expire by default and require congressional renewal. The legitimacy of any specific emergency declaration depends on whether the described threat genuinely constitutes the kind of emergency Congress contemplated when it delegated these powers.
Executive Order 14065 ("Executive Order 14065-Blocking Property of Certain Persons and Prohibiting Certain Transactions With Respect to Continued Russian Efforts To Undermine the Sovereignty and Territorial Integrity of Ukraine") imposes sanctions or economic restrictions targeting Russia. The President's stated rationale: "because of the ability to transfer funds or other assets instantaneously, prior notice to such persons of measures to be taken pursuant to this order would render those measures ineffectual." The International Emergency Economic Powers Act (IEEPA) grants the President broad authority to regulate international economic transactions when a national emergency has been declared. Presidents from both parties have used IEEPA extensively for foreign policy sanctions.
While the statutory authority is well-established, IEEPA's breadth has drawn constitutional criticism. The statute delegates sweeping power to the President during emergencies that can last for years or decades. The non-delegation doctrine questions whether Congress can transfer such broad economic regulatory authority to the executive branch. Despite these concerns, courts have generally deferred to presidential sanctions decisions.
This signing statement ("Statement on Signing the National Defense Authorization Act for Fiscal Year 2022") was issued alongside a bill the President signed into law. The President's stated concerns: "discharge his responsibility to protect the national security." Signing statements allow presidents to express constitutional or policy objections to specific provisions of legislation they have just signed. Their legal weight and constitutional propriety have been contested since the practice became common in the 1980s.
Critics — including the American Bar Association — argue that using signing statements to announce an intent to not enforce portions of a law effectively creates a line-item veto, which the Supreme Court ruled unconstitutional in Clinton v. City of New York (1998). Defenders argue presidents have a duty to identify constitutional concerns and that signing statements are a legitimate form of executive interpretation. The constitutional propriety depends on whether this specific statement announces non-enforcement or merely records the President's views.
This proclamation ("Proclamation 10327-Adjusting Imports of Aluminum Into the United States") imposes or modifies tariffs. The stated rationale is: "the threatened impairment to the national security by aluminum articles imported from the EU." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
Executive Order 14059 ("Executive Order 14059-Imposing Sanctions on Foreign Persons Involved in the Global Illicit Drug Trade") imposes sanctions or economic restrictions. The President's stated rationale: "because of the ability to transfer funds or other assets instantaneously, prior notice to such persons of measures to be taken pursuant to this order would render those measures ineffectual." The International Emergency Economic Powers Act (IEEPA) grants the President broad authority to regulate international economic transactions when a national emergency has been declared. Presidents from both parties have used IEEPA extensively for foreign policy sanctions.
While the statutory authority is well-established, IEEPA's breadth has drawn constitutional criticism. The statute delegates sweeping power to the President during emergencies that can last for years or decades. The non-delegation doctrine questions whether Congress can transfer such broad economic regulatory authority to the executive branch. Despite these concerns, courts have generally deferred to presidential sanctions decisions.
Executive Order 14057 ("Executive Order 14057-Catalyzing Clean Energy Industries and Jobs Through Federal Sustainability") directs energy or environmental policy. The President's stated rationale: "reestablish the Federal Government as a leader in sustainability, it is hereby ordered as follows: Section 101 ." Executive orders in this domain typically direct agencies like the EPA, Department of Energy, and Interior Department on how to implement existing environmental statutes — the Clean Air Act, Clean Water Act, Endangered Species Act, and energy-related laws.
The constitutional question depends on whether the order directs implementation within statutory bounds (acceptable) or attempts to rewrite regulatory schemes in ways Congress did not authorize (overreaching). Both Democratic and Republican administrations have used executive orders to shift environmental policy, and courts have struck down orders that exceed agency statutory authority or ignore required rulemaking procedures.
Executive Order 14032 ("Executive Order 14032-Addressing the Threat From Securities Investments That Finance Certain Companies of the People's Republic of China") imposes sanctions or economic restrictions targeting China. The President's stated rationale: "threat from securities investments that finance certain companies ." The International Emergency Economic Powers Act (IEEPA) grants the President broad authority to regulate international economic transactions when a national emergency has been declared. Presidents from both parties have used IEEPA extensively for foreign policy sanctions.
While the statutory authority is well-established, IEEPA's breadth has drawn constitutional criticism. The statute delegates sweeping power to the President during emergencies that can last for years or decades. The non-delegation doctrine questions whether Congress can transfer such broad economic regulatory authority to the executive branch. Despite these concerns, courts have generally deferred to presidential sanctions decisions.
Executive Order 14030 ("Executive Order 14030-Climate-Related Financial Risk") directs energy or environmental policy. The President's stated rationale: "increase the long-term stability of Federal operations; financing needs associated with achieving net-zero greenhouse gas emissions for the U." Executive orders in this domain typically direct agencies like the EPA, Department of Energy, and Interior Department on how to implement existing environmental statutes — the Clean Air Act, Clean Water Act, Endangered Species Act, and energy-related laws.
The constitutional question depends on whether the order directs implementation within statutory bounds (acceptable) or attempts to rewrite regulatory schemes in ways Congress did not authorize (overreaching). Both Democratic and Republican administrations have used executive orders to shift environmental policy, and courts have struck down orders that exceed agency statutory authority or ignore required rulemaking procedures.
Executive Order 14027 ("Executive Order 14027-Establishment of the Climate Change Support Office") directs energy or environmental policy. The President's stated rationale: "the global climate crisis, led by the Department of State and in coordination with other executive departments and agencies, consistent with Executive Order 14008 of January 27, 2021 (Tackling the Climate Crisis at Home and Abroad)." Executive orders in this domain typically direct agencies like the EPA, Department of Energy, and Interior Department on how to implement existing environmental statutes — the Clean Air Act, Clean Water Act, Endangered Species Act, and energy-related laws.
The constitutional question depends on whether the order directs implementation within statutory bounds (acceptable) or attempts to rewrite regulatory schemes in ways Congress did not authorize (overreaching). Both Democratic and Republican administrations have used executive orders to shift environmental policy, and courts have struck down orders that exceed agency statutory authority or ignore required rulemaking procedures.
This proclamation ("Proclamation 10199-Suspension of Entry as Nonimmigrants of Certain Additional Persons Who Pose a Risk of Transmitting Coronavirus Disease 2019") imposes or modifies tariffs. The stated rationale is: "the Nation s public health from travelers entering the United States from that jurisdiction." Under Article I, Section 8, Congress holds the power to "regulate Commerce with foreign Nations" and to "lay and collect Duties." However, Congress has delegated significant tariff authority to the President through statutes like Section 232 of the Trade Expansion Act (national security tariffs) and Section 301 of the Trade Act (unfair trade practices).
The constitutional question is the scope of that delegation. Courts have historically upheld broad presidential trade actions under these statutes. But sweeping tariff measures that effectively rewrite trade policy — affecting billions in commerce — raise non-delegation doctrine concerns. When the executive branch makes economic policy of this magnitude unilaterally, it sits at the edge of the separation of powers.
Executive Order 14013 ("Executive Order 14013-Rebuilding and Enhancing Programs To Resettle Refugees and Planning for the Impact of Climate Change on Migration") directs federal immigration policy. The stated rationale: "program integrity and protect national security." The Immigration and Nationality Act grants the President significant authority over immigration enforcement, entry suspension, and refugee admissions. Section 212(f) in particular gives broad power to restrict entry of aliens deemed detrimental to U.S. interests.
Immigration executive orders frequently face legal challenges. Courts examine whether the order implements existing immigration statutes (generally acceptable) or creates new categories and policies Congress has not authorized (potentially overreaching). The Supreme Court has upheld broad presidential immigration authority in cases like Trump v. Hawaii (2018), while lower courts have struck down orders that exceed statutory limits or discriminate unconstitutionally.
This executive order ("Remarks on Signing Executive Orders on Immigration Reform and an Exchange With Reporters") directs federal immigration policy. The stated rationale: "DREAMers and to end the Muslim ban and to better manage of our borders." The Immigration and Nationality Act grants the President significant authority over immigration enforcement, entry suspension, and refugee admissions. Section 212(f) in particular gives broad power to restrict entry of aliens deemed detrimental to U.S. interests.
Immigration executive orders frequently face legal challenges. Courts examine whether the order implements existing immigration statutes (generally acceptable) or creates new categories and policies Congress has not authorized (potentially overreaching). The Supreme Court has upheld broad presidential immigration authority in cases like Trump v. Hawaii (2018), while lower courts have struck down orders that exceed statutory limits or discriminate unconstitutionally.
Executive Order 14010 ("Executive Order 14010-Creating a Comprehensive Regional Framework To Address the Causes of Migration, To Manage Migration Throughout North and Central America, and To Provide Safe and Orderly Processing of Asylum Seekers at the United States Border") directs federal immigration policy. The stated rationale: "the underlying factors leading to migration in the region and ensure coherence of United States Government positions." The Immigration and Nationality Act grants the President significant authority over immigration enforcement, entry suspension, and refugee admissions. Section 212(f) in particular gives broad power to restrict entry of aliens deemed detrimental to U.S. interests.
Immigration executive orders frequently face legal challenges. Courts examine whether the order implements existing immigration statutes (generally acceptable) or creates new categories and policies Congress has not authorized (potentially overreaching). The Supreme Court has upheld broad presidential immigration authority in cases like Trump v. Hawaii (2018), while lower courts have struck down orders that exceed statutory limits or discriminate unconstitutionally.
Executive Order 14011 ("Executive Order 14011-Establishment of Interagency Task Force on the Reunification of Families") restructures or establishes federal entities. The stated purpose: "reunite children separated from their families at the United States-Mexico border, it is hereby ordered as follows: Section 1 ." The President has authority to manage the executive branch under Article II, including creating task forces, councils, and working groups within the White House. However, creating independent agencies with binding regulatory authority, or fundamentally restructuring congressionally created departments, typically requires legislative authorization.
The Reorganization Act historically provided a framework for executive reorganization subject to congressional review. Current reorganization authority is more limited. The constitutionality depends on whether this order creates White House advisory bodies (acceptable) or attempts to restructure agencies in ways that conflict with their enabling statutes (questionable).
This proclamation ("Proclamation 10141-Ending Discriminatory Bans on Entry to the United States") restricts or modifies entry into the United States. The stated basis: "that individuals whose immigrant visa applications were denied on the basis of the suspension and restriction on entry imposed by Proclamation 9645 or 9983 may have their applications reconsidered." Section 212(f) of the Immigration and Nationality Act grants the President authority to suspend entry of aliens whose presence would be "detrimental to the interests of the United States." The Supreme Court upheld this broad authority in Trump v. Hawaii (2018).
While the statutory authority is expansive, courts scrutinize immigration proclamations for discrimination, rational basis, and fidelity to the underlying statute. The constitutional question often turns on whether the proclamation is implementing existing immigration law (acceptable) or effectively creating new categories and policies Congress did not authorize (potentially overreaching).