In February 2018, a resolution to reprimand Rep. Gosar for attempting to pressure Capitol Police via Twitter to arrest State of the Union 2018 guests he described as "illegal aliens" was tabled (i.e. failed) on party lines, 231-187. Several Democratic representatives brought undocumented immigrants who are currently part of the DACA program to the speech.
Timeline
January 30, 2018
Asked Capitol Police to arrest DACA recipients attending the 2018 State of the Union address.