Each of the 50 U.S. states, the District of Columbia, and territories of the United States holds either primary elections or caucuses to help nominate individual candidates for president of the United States. This process is designed to choose the candidates that will represent their political parties in the general election.
The Iowa caucuses are quadrennial electoral events for the Democratic and Republican parties in the U.S. state of Iowa. Unlike primary elections, where registered voters cast ballots at polling places on election day, Iowa caucuses are meetings where voters gather to discuss and select candidates for their registered party. Political parties hold the caucuses, in contrast to most state-run primaries. Both presidential and midterm elections in Iowa use caucuses. The caucuses are also held to select delegates to county conventions and party committees, among other party activities.
Super Tuesday is the United States presidential primary election day in February or March when the greatest number of U.S. states hold primary elections and caucuses. Approximately one-third of all delegates to the presidential nominating conventions can be won on Super Tuesday, more than on any other day. The results on Super Tuesday are therefore a strong indicator of the likely eventual presidential nominee of each political party.
From January 3 to June 3, 2008, voters of the Republican Party chose their nominee for president in the 2008 United States presidential election. Senator John McCain of Arizona was selected as the nominee through a series of primary elections and caucuses culminating in the 2008 Republican National Convention held from Monday, September 1, through Thursday, September 4, 2008, in Saint Paul, Minnesota. President George W. Bush was ineligible to be elected to a third term due to the term limits established by the 22nd Amendment.
This article contains the results of the 2008 Republican presidential primaries and caucuses.
The Nevada presidential caucuses are an electoral event in which citizens met in precinct caucuses to elect delegates to the corresponding county conventions. In 2021, Harry Reid passed legislation (AB321) to include primaries in hopes of increasing voter turn-out. Nevada has for decades and still does have a caucus. The caucus is where the delegates receive the votes that will be carried to the National Convention and not the primaries. There are 17 counties in Nevada and the state has 26 delegates. The Nevada caucuses began in 1981. The Kerry/Dean caucus was held on February 14, 2004. In 2008 the DNC gave Nevada the official first in the west status reflecting the growing importance of the West as well as Nevada's electoral bellwether status. The 2008 Nevada caucuses were the third major electoral event in the nominating process for President of the United States. In 2016, the Democratic caucus was held on February 20 and the Republican caucus was held on February 23.
The 2008 Alaska Republican presidential caucuses were held on February 5, 2008, and has a total of 26 delegates at stake. Mitt Romney won the state, and, as the winner in Alaska's congressional district, was awarded all of that district's delegates. All results are from the presidential preference poll held at the caucuses. Actual delegates were selected on February 5 or 9 at district conventions held throughout the state, and finally at a statewide convention held between March 13–15 in Anchorage.
The 2008 Colorado Democratic presidential caucuses took place on Super Tuesday, February 5, 2008. As he did in every other state that held a caucus rather than a primary, Barack Obama won the caucus by a wide, two-to-one margin over Hillary Clinton.
The 2008 North Dakota Democratic presidential caucuses took place on February 5, 2008, one of the many Super Tuesday nominating contests held that day. Barack Obama won the caucuses, securing 8 out of 13 national delegates.
Voters of the Republican Party elected state delegations to the 2012 Republican National Convention in presidential primaries. The national convention then selected its nominee to run for President of the United States in the 2012 presidential election. There were 2,286 delegates chosen, and a candidate needed to accumulate 1,144 delegate votes at the convention to win the nomination. The caucuses allocated delegates to the respective state delegations to the national convention, but the actual election of the delegates were, many times, at a later date. Delegates were elected in different ways that vary from state to state. They could be elected at local conventions, selected from slates submitted by the candidates, selected at committee meetings, or elected directly at the caucuses and primaries.
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. The 2012 Republican primaries were the selection processes by which the Republican Party selected delegates to attend the 2012 Republican National Convention from August 27–30. The series of primaries, caucuses, and state conventions culminated in the national convention, where the delegates cast their votes to formally select a candidate. A simple majority (1,144) of the total delegate votes (2,286) was required to become the party's nominee.
The 2012 United States presidential election in Missouri took place on November 6, 2012, as part of the 2012 United States presidential election, in which all 50 states plus the District of Columbia participated. Missouri voters chose 10 electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic President Barack Obama and his running mate, Vice President Joe Biden, against Republican challenger and former Massachusetts Governor Mitt Romney and his running mate, Congressman Paul Ryan.
The 2012 United States presidential election in Idaho took place on November 6, 2012, as part of the 2012 United States presidential election in which all 50 states plus the District of Columbia participated. Idaho voters chose four electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic President Barack Obama and his running mate, Vice President Joe Biden, against Republican challenger and former Massachusetts Governor Mitt Romney and his running mate, Congressman Paul Ryan. Prior to the election, 17 news organizations considered this a state Romney would win, or otherwise considered as a safe red state. Romney and Ryan carried Idaho with 64.09% of the popular vote to Obama's and Biden's 32.40%, thus winning the state's four electoral votes. Romney's victory in Idaho made it his fourth strongest state in the 2012 election after Utah, Wyoming and Oklahoma. He improved on McCain's performance in 2008, expanding his margin from 25.3% to 31.69% and flipping Teton County which had previously voted for Obama.
The 2012 North Dakota Republican presidential caucuses were held on March 6, 2012. North Dakota has 28 delegates to the Republican National Convention; despite Rick Santorum's nominal win in the preference poll conducted during the caucuses, the majority of the delegates elected by the state party convention later in March said they supported Romney.
The 2012 United States presidential election in Alaska took place on November 6, 2012, as part of the 2012 United States presidential election in which all 50 states plus the District of Columbia participated. Alaska voters chose three electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic President Barack Obama and his running mate, Vice President Joe Biden, against Republican challenger and former Massachusetts Governor Mitt Romney and his running mate, Congressman Paul Ryan.
The 2012 United States presidential election in North Dakota took place on November 6, 2012, as part of the 2012 United States presidential election in which all 50 states plus the District of Columbia participated. North Dakota voters chose three electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic President Barack Obama and his running mate, Vice President Joe Biden, against Republican challenger and former Massachusetts Governor Mitt Romney and his running mate, Congressman Paul Ryan.
This article contains the results of the 2016 Republican presidential primaries and caucuses, the processes by which the Republican Party selected delegates to attend the 2016 Republican National Convention from July 18–21. The series of primaries, caucuses, and state conventions culminated in the national convention, where the delegates cast their votes to formally select a candidate. A simple majority (1,237) of the total delegate votes (2,472) was required to become the party's nominee and was achieved by the nominee, businessman Donald Trump of New York.
The 2020 Tennessee Democratic presidential primary took place on March 3, 2020, as one of 15 contests scheduled on Super Tuesday in the Democratic Party primaries for the 2020 presidential election, following the South Carolina primary the weekend before. The Tennessee primary was an open primary, with the state awarding 73 delegates towards the 2020 Democratic National Convention, of which 64 were pledged delegates allocated on the basis of the results of the primary.
Although the Northern Mariana Islands did not participate in the 2020 presidential election because it is a U.S. territory and not a state, it still participated in the U.S. presidential primaries and caucuses. Senator Bernie Sanders won the Democratic caucus, held on March 14, which would be his last win in the 2020 primary season. The Republican caucus, held on March 15 during the party's commonwealth convention, unanimously voted for incumbent President Donald Trump.
Below is a detailed tally of the results of the 2020 Republican Party presidential primary elections in the United States. In most U.S. states outside New Hampshire, votes for write-in candidates remain untallied.
