Name Born[lower-alpha 1] Current/recent State Announced Withdrew Candidacy Endorsed Ref John Kasich May 13, 1952 (age 64) McKees Rocks, Pennsylvania 69th Governor of Ohio (2011–2019) Ohio July 21, 2015 May 4, 2016 (Campaign • Positions • Website) FEC filing No endorsement (wrote in John McCain) [4][5] Ted Cruz December 22, 1970 (age 45) Calgary, Alberta, Canada United States Senator from Texas (2013–present) Texas March 23, 2015 May 3, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [6][7] Marco Rubio May 28, 1971 (age 45) Miami, Florida United States Senator from Florida (2011–present) Florida April 13, 2015 March 15, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [8][9] Ben Carson September 18, 1951 (age 65) Detroit, Michigan Director of Pediatric Neurosurgery, Johns Hopkins Hospital (1984–2013) Maryland May 4, 2015 March 2, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [10][11] Jeb Bush February 11, 1953 (age 63) Midland, Texas 43rd Governor of Florida (1999–2007) Florida June 15, 2015 February 20, 2016 (Campaign • Positions • Website) FEC filing Ted Cruz, then no endorsement [12][13] Jim Gilmore October 6, 1949 (age 67) Richmond, Virginia 68th Governor of Virginia (1998–2002) Virginia July 30, 2015 February 12, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [14][15] Chris Christie September 6, 1962 (age 54) Newark, New Jersey 55th Governor of New Jersey (2010–2018) New Jersey June 30, 2015 February 10, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [16][17] Carly Fiorina September 6, 1954 (age 62) Austin, Texas CEO of Hewlett-Packard (1999–2005) California May 4, 2015 February 10, 2016 (Campaign • Positions • Website) FEC filing Ted Cruz, then Donald Trump, later rescinded endorsement [18][19] Rick Santorum May 10, 1958 (age 58) Winchester, Virginia United States Senator from Pennsylvania (1995–2007) Pennsylvania May 27, 2015 February 3, 2016 (Campaign • Positions • Website) FEC filing Marco Rubio, then Donald Trump [20][21] Rand Paul January 7, 1963 (age 53) Pittsburgh, Pennsylvania United States Senator from Kentucky (2011–present) Kentucky April 7, 2015 February 3, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [22][23] Mike Huckabee August 24, 1955 (age 61) Hope, Arkansas 44th Governor of Arkansas (1996–2007) Arkansas May 5, 2015 February 1, 2016 (Campaign • Positions • Website) FEC filing Donald Trump [24][25]