On May 19, 2021, Kinzinger and 34 other Republican House members in the 117th Congress voted to create a National Commission to Investigate the January 6th Attack on the United States Capitol Complex, intended to probe the storming of the Capitol. They joined with all 217 Democrats present to vote to establish such a body. After the Senate failed to support the national bipartisan commission due to a Republican filibuster, Kinzinger remained committed to the concept.