John McCain Mitt Romney This article contains the results of the 2012 Republican presidential primaries and caucuses, which resulted in the nomination of Mitt Romney as the Republican nominee for President of the United States.

Rick Perry dropped out after Iowa and New Hampshire but prior to the South Carolina primary after polling poorly.

Rick Santorum suspended his campaign in April after polls showed a strong possibility that he would lose his home state of Pennsylvania to Mitt Romney, and his daughter Bella's condition worsened.

Newt Gingrich withdrew after insufficient funds prevented him from moving forward with a strong campaign.

The traditional roll call of the states, which shows final distribution of delegates for every candidate, took place on Tuesday August 28, the first full day of the Republican National Convention.

Two serious candidates who were not invited, Buddy Roemer and Fred Karger, had a very hard time getting on primary ballots and achieved only limited success.

Six candidates, L. John Davis, Randy Crow, Chris Hill, Keith Drummond, Mike Meehan, and Mark Callahan, qualified for the ballot in two primaries, while the rest, over 25 in all, were on the ballot in only one, either New Hampshire or Arizona, which both had relatively easy requirements.

[100] Primary: March 13, 2012 National delegates: 40 (winner-take-all if over 50%) Caucus: March 13, 2012 National delegates: 9 Mitt Romney had the most support but there were a few votes for each of the candidates Ron Paul, Rick Santorum, and Newt Gingrich.