On February 5, 2014, Mullin introduced the bill To revoke the charter of incorporation of the Miami Tribe of Oklahoma at the request of that tribe (H.R. 4002; 113th Congress), which would accept the Miami Tribe of Oklahoma’s request to revoke the charter of incorporation issued to it and ratified by its members on June 1, 1940.[17]
In April 2017, Mullin drew criticism when he was recorded during a town hall meeting telling his constituents that it was “bullcrap” that taxpayers pay his salary. He said, “I pay for myself. I paid enough taxes before I got here and continue to through my company to pay my own salary. This is a service. No one here pays me to go.”[18]
In December 2020, Mullin was one of 126 Republican members of the House of Representatives to sign an amicus brief in support of Texas v. Pennsylvania, a lawsuit filed at the United States Supreme Court contesting the results of the 2020 presidential election, in which Joe Biden defeated[19] incumbent Donald Trump. The Supreme Court declined to hear the case on the basis that Texas lacked standing under Article III of the Constitution to challenge the results of an election held by another state.[20][21][22]
During the 2021 storming of the United States Capitol, Mullin, along with Texas representatives Troy Nehls (a former Sheriff and Army veteran) and Pat Fallon (an Air Force veteran) helped U.S. Capitol Police build barricades and protect the doors to the House chamber from the rioters. He and many of his colleagues were later ushered to a secure location, where he declined offers to wear a mask, in violation of House rules.[23][24] Mullin said that he witnessed the shooting of Trump supporter Ashli Babbitt during the attack, which occurred after she climbed through a barricade leading towards the House Chamber; Mullin’s opinion was that the Capitol police officer “didn’t have a choice” but to shoot, and that this action “saved people’s lives”, with members of Congress and their staff “in danger” from the “mob”.[
https://en.wikipedia.org/wiki/Markwayne_Mullin