Sources: CNN
The U.S. House of Representatives votes 222–190 to establish a committee to investigate the January 6 riot at the United States Capitol, with Liz Cheney (WY-1) and Adam Kinzinger (IL-16) being the only two Republicans to vote for the committee. 2021-06-30
United States House Republicans vote to remove Wyoming representative Liz Cheney as Chair of the House of Representatives Republican Conference, following her critical statements about former President Donald Trump. 2021-05-12
The United States Senate votes on whether to acquit U.S. President Donald Trump. By a vote of 52–48 almost entirely along party lines, the Republican-majority Senate acquits Trump on the first article of impeachment, abuse of power, and acquits him on the second charge, obstruction of Congress, in a separate 53–47 vote. Utah Senator Mitt Romney casts the sole Republican guilty vote, against party lines, on the first article. 2020-02-5
The United States Republican Party officially nominates Mitt Romney as its candidate in the 2012 presidential election at the National Convention in Tampa, Florida. 2012-08-28
Mitt Romney, the presumptive Republican Party nominee for the United States presidency, names Wisconsin Congressman Paul Ryan as the Republican Party's vice presidential candidate in the presidential election in November. 2012-08-11
Voters in the US state of Texas go to the polls for primary elections, with Mitt Romney securing the Republican nomination in the Republican primary. 2012-05-29
Republican voters in the US state of Washington go to the polls for caucuses, with Mitt Romney winning. 2012-03-3
Republican Party voters in Colorado participate in caucuses with 36 delegates at stake - Santorum wins, with Mitt Romney placing second. 2012-02-7
Republican Party voters gather in Nevada for the party caucuses with Mitt Romney projected as the winner. 2012-02-4
Voters in the U.S. state of Iowa go to the polls for electoral caucuses, with Mitt Romney defeating Rick Santorum by 8 votes in the Republican Party contest, and Ron Paul following in third place. 2012-01-3