This was the largest presidential primary field for any political party in American history.
Prior to the Iowa caucuses on February 1, Perry, Walker, Jindal, Graham and Pataki withdrew due to low polling numbers.
However, Trump scored landslide victories in New York and five North-Eastern states in April, before taking every delegate in the Indiana primary of May 3.
Without any further chances of forcing a contested convention, Cruz suspended his campaign 17 major candidates were listed in major independent nationwide polls and filed as candidates with the Federal Election Commission.
territories, occurring between February 1 and June 7.
Following a sizable victory for Trump in the New Hampshire primary, Christie, Fiorina and Gilmore abandoned the race.
Bush capitulated after scoring fourth place to Trump, Rubio and Cruz in South Carolina.
On Super Tuesday, March 1, 2016, Rubio won his first contest in Minnesota, Cruz won Alaska, Oklahoma and his home state of Texas, while Trump won seven states.
Failing to gain traction, Carson suspended From March 16, 2016 to May 3, 2016, only three candidates remained in the race: Trump, Cruz and Kasich.
Cruz won most delegates in four Western contests and in Wisconsin, keeping a credible path to denying Trump the nomination on first ballot with 1,237 delegates.(See the main article for other notable candidates.) A total of 2,472 delegates went to the 2016 Republican National Convention and the winning candidate needed a simple majority of 1,237 votes to be the Republican nominee.