For more details on voting results, click on the link for each state or visit the Voter Guide page and click on Delegate Tracker.
- Tuesday, January 3, 2012 / Iowa Republican Caucus / Number of Delegates: 28 Results: Rick Santorum - 25% Mitt Romney - 25% Ron Paul - 21%
- Tuesday, January 10, 2012 / New Hampshire Republican Primary / Number of Delegates: 12 Results: Mitt Romney - 39% Ron Paul - 23% Jon Huntsman - 17%
- Saturday, January 21, 2012 / South Carolina Republican Primary / Number of Delegates: 25 Results: Newt Gingrich - 40% Mitt Romney - 28% Rick Santorum - 17%
- Tuesday, January 31, 2012 / Florida Republican Primary / Number of Delegates: 50 Results: Mitt Romney - 46% Newt Gingrich - 32% Rick Santorum - 13%
- Saturday, February 4, 2012 / Nevada Republican Caucus / Number of Delegates: 28 Results: Mitt Romney - 50% Newt Gingrich - 21% Ron Paul - 19%
- Tuesday, February 7, 2012 / Colorado Republican Caucus / Number of Delegates: 36 Results: Rick Santorum - 40% Mitt Romney - 35% Newt Gingrich - 13%
- Tuesday, February 7, 2012 / Minnesota Republican Caucus / Number of Delegates: 40 Results: Rick Santorum - 45% Ron Paul - 27% Mitt Romney - 17%
- Saturday, February 11, 2012 / Maine Republican Caucus / Number of Delegates: 24 Results: Mitt Romney - 39% Ron Paul - 36% Rick Santorum - 18%
- Tuesday, February 28, 2012 / Michigan Republican Primary / Number of Delegates: 30 Results: Mitt Romney - 41% Rick Santorum - 38% Ron Paul - 12%
- Tuesday, February 28, 2012 / Arizona Republican Primary / Number of Delegates: 29 Results: Mitt Romney - 43% Rick Santorum - 27% Newt Gingrich - 16%
- Saturday, March 3, 2012 / Washington Republican Caucus / Number of Delegates: 43 Results: Mitt Romney - 38% Ron Paul - 25% Rick Santorum - 24%
- Tuesday, March 6, 2012 / North Dakota Republican Caucus / Number of Delegates: 28 Results: Rick Santorum - 40% Ron Paul - 27% Mitt Romney - 24%
- Tuesday, March 6, 2012 / Alaska Republican Caucus / Number of Delegates: 27 Results: Mitt Romney - 32% Rick Santorum - 29% Ron Paul - 24%
- Tuesday, March 6, 2012 / Massachusetts Republican Primary / Number of Delegates: 41 Results: Mitt Romney - 72% Rick Santorum 12% Ron Paul 9%
- Tuesday, March 6, 2012 / Idaho Republican Caucus / Number of Delegates: 32 Results: Mitt Romney - 62% Rick Santorum - 18% Ron Paul - 18%
- Tuesday, March 6, 2012 / Georgia Republican Primary / Number of Delegates: 76 Results: Newt Gingrich - 47% Mitt Romney - 26% Rick Santorum - 20%
- Tuesday, March 6, 2012 / Ohio Republican Primary / Number of Delegates: 66 Results: Mitt Romney - 40% Rick Santorum 37% Newt Gingrich - 15%
- Tuesday, March 6, 2012 / Oklahoma Republican Primary / Number of Delegates: 43 Results: Rick Santorum - 34% Mitt Romney - 28% Newt Gingrich - 27%
- Tuesday, March 6, 2012 / Vermont Republican Primary / Number of Delegates: 17 Results: Mitt Romney - 40% Ron Paul - 25% Rick Santorum - 24%
- Tuesday, March 6, 2012 / Tennessee Republican Primary / Number of Delegates: 58 Results: Rick Santorum - 37% Mitt Romney - 28% Newt Gingrich - 24%
- Tuesday, March 6, 2012 / Virginia Republican Primary / Number of Delegates: 49 Results: Mitt Romney - 59.5% Ron Paul - 40.5%
- Saturday, March 10, 2012 / Kansas Republican Caucus / Number of Delegates: 40 Results: Rick Santorum - 51% Mitt Romney - 21% Newt Gingrich - 14%
- Saturday, March 10, 2012 / North Marianas Islands Republican Caucus / Number of Delegates: 9 Results: Mitt Romney - 87.3% Rick Santorum - 6.2% Newt Gingrich - 3.3%
- Saturday, March 10, 2012 / Wyoming Republican Caucus / Number of Delegates: 29 Results: Mitt Romney - 44% Rick Santorum - 25% Ron Paul - 12%
- Saturday, March 10, 2012 / U.S. Virgin Islands Republican Caucus / Number of Delegates: 9 Results: Mitt Romney - 27% Ron Paul - 29% Uncommitted - 34%
- Saturday, March 10, 2012 / Guam Republican Caucus / Number of Delegates: 9 Results: Mitt Romney - 100%
- Tuesday, March 13, 2012 / Hawaii Republican Caucus / Number of Delegates: 20 Results: Mitt Romney - 45% Rick Santorum - 25% Ron Paul - 18%
- Tuesday, March 13, 2012 / Alabama Republican Primary / Number of Delegates: 50 Results: Rick Santorum - 34% Newt Gingrich - 29% Mitt Romney - 29%
- Tuesday, March 13, 2012 / Mississippi Republican Primary / Number of Delegates: 38 Results: Rick Santorum - 33% Newt Gingrich - 31% Mitt Romney - 31%
- Tuesday, March 13, 2012 / American Samoa Republican Caucus / Number of Delegates: 9 Results: Mitt Romney - 100%
- Sunday, March 18, 2012 / Puerto Rico Republican Primary / Number of Delegates: 23 Results: Mitt Romney - 88% Rick Santorum - 8.5% Newt Gingrich - 2.2%
- Tuesday, March 20, 2012 / Illinois Republican Primary / Number of Delegates: 69 Results: Mitt Romney - 47% Rick Santorum - 35% Ron Paul - 9%
- Saturday, March 24, 2012 / Louisiana Republican Primary / Number of Delegates: 45 Results: Rick Santorum - 49% Mitt Romney - 27% Newt Gingrich - 16%
- Tuesday, April 3, 2012 / District of Columbia Republican Primary / Number of Delegates: 19 Results: Mitt Romney - 70% Ron Paul - 12% Newt Gingrich - 11%
- Tuesday, April 3, 2012 / Maryland Republican Primary / Number of Delegates: 37 Results: Mitt Romney - 49% Rick Santorum - 29% Newt Gingrich - 11%
- Tuesday, April 3, 2012 / Wisconsin Republican Primary / Number of Delegates: 42 Results: Mitt Romney - 44% Rick Santorum - 37% Ron Paul - 11%
- Tuesday, April 24, 2012 / Connecticut Republican Primary / Number of Delegates: 28 Results: Mitt Romney - 67% Ron Paul - 13% Newt Gingrich - 6%
- Tuesday, April 24, 2012 / Delaware Republican Primary / Number of Delegates: 17 Results: Mitt Romney - 56% Newt Gingrich - 27% Ron Paul 11%
- Tuesday, April 24, 2012 / Pennsylvania Republican Primary / Number of Delegates: 72 Results: Mitt Romney - 58% Rick Santorum - 18% Ron Paul - 13%
- Tuesday, April 24, 2012 / New York Republican Primary / Number of Delegates: 95 Results: Mitt Romney - 63% Ron Paul - 15% Newt Gingrich - 13% (note: 95.3% precincts reporting)
- Tuesday, April 24, 2012 / Rhode Island Republican Primary / Number of Delegates: 19 Results: Mitt Romney - 63% Ron Paul - 24% Newt Gingrich - 6%
- Tuesday, May 8, 2012 / Indiana Republican Primary / Number of Delegates: 46 Results: Mitt Romney - 65% Ron Paul - 16% Rick Santorum - 13%
- Tuesday, May 8, 2012 / North Carolina Republican Primary / Number of Delegates: 55 Results: Mitt Romney - 66% Ron Paul - 11% Rick Santorum - 10%
- Tuesday, May 8, 2012 / West Virginia Republican Primary / Number of Delegates: 31 Results: Mitt Romney - 70% Rick Santorum - 12% Ron Paul - 11%
- Tuesday, May 15, 2012 / Oregon Republican Primary / Number of Delegates: 28 Results: Mitt Romney - 72% Ron Paul - 13% Rick Santorum - 9%
- Tuesday, May 15, 2012 / Nebraska Republican Primary / Number of Delegates: 34 Results: Mitt Romney - 71% Rick Santorum - 14% Ron Paul - 10%
- Tuesday, May 22, 2012 / Kentucky Republican Primary / Number of Delegates: 45 Results: Mitt Romney - 67% Ron Paul 12% Rick Santorum - 9%
- Tuesday, May 22, 2012 / Arkansas Republican Primary / Number of Delegates: 36 Results: Mitt Romney - 68% Ron Paul - 13% Rick Santorum - 13%
- Tuesday, May 29, 2012 / Texas Republican Primary / Number of Delegates: 155 Results: Mitt Romney - 69% Ron Paul - 12% Rick Santorum - 8%
- Saturday, June 2, 2012 / Missouri Republican Primary / Number of Delegates: 52 Results from February Non-Binding Vote: Rick Santorum - 55% Mitt Romney - 25% Ron Paul 12% (June Convention Results)
- Tuesday, June 5, 2012 / Montana Republican Primary / Number of Delegates: 26 Results: Mitt Romney - 68% Ron Paul - 14% Rick Santorum - 9% Newt Gingrich - 4%
- Tuesday, June 5, 2012 / New Jersey Republican Primary / Number of Delegates: 50 Results: Mitt Romney - 81% Ron Paul - 10% Rick Santorum - 5% Newt Gingrich - 3%
- Tuesday, June 5, 2012 / California Republican Primary / Number of Delegates: 172 Results: Mitt Romney - 80% Ron Paul - 10% Rick Santorum - 5% Newt Gingrich - 4%
- Tuesday, June 5, 2012 / New Mexico Republican Primary / Number of Delegates: 23 Results: Mitt Romney - 73% Rick Santorum - 11% Ron Paul - 10% Newt Gingrich - 6%
- Tuesday, June 5, 2012 / South Dakota Republican Primary / Number of Delegates: 28 Results: Mitt Romney - 66% Ron Paul - 13% Rick Santorum - 12% Newt Gingrich - 4%
- Tuesday, June 26, 2012 / Utah Republican Primary / Number of Delegates: 40
