On January 6, 2021, Collins was participating in the certification of the Electoral College vote count when Trump supporters stormed the United States Capitol. She was on the Senate floor listening to speeches related to the objection to counting Arizona's votes when the Sergeant at Arms of the U.S. Senate and U.S. Capitol Police removed Vice President Mike Pence and Senators Mitch McConnell and Chuck Schumer. She called the experience "frightening and appalling." Collins later called the storming "a dangerous, shameful, and outrageous attack on our democracy" and blamed Trump for "working up the crowd and inciting this mob". She called on him to call off the rioters. When Congress reconvened after the Capitol was secure, Collins voted to certify the count.