2020 Illinois Republican presidential primary

The Reform Party of the United States of America (RPUSA), generally known as the Reform Party USA or the Reform Party, is a centrist political party in the United States, founded in 1995 by Ross Perot.

Roque "Rocky" De La Fuente Guerra is an American businessman and politician. A perennial candidate, De La Fuente was the Reform Party nominee in the 2016 and 2020 United States presidential elections. He also appeared on his own American Delta Party's presidential ticket in 2016, and on those of the Alliance Party and American Independent Party in 2020.

The 2016 United States presidential election in Rhode Island took place on November 8, 2016, as part of the 2016 United States presidential election in which all 50 states plus the District of Columbia participated. Rhode Island voters chose four electors to represent them in the Electoral College via a popular vote.

The 2016 United States presidential election in Ohio was held on Tuesday, November 8, 2016, as part of the 2016 United States presidential election in which all 50 states plus the District of Columbia participated. Ohio voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, businessman Donald Trump, and running mate Indiana Governor Mike Pence against Democratic Party nominee, former Secretary of State Hillary Clinton, and her running mate Virginia Senator Tim Kaine. Ohio had 18 electoral votes in the Electoral College.

Rocky De La Fuente ran a third-party campaign for the presidency of the United States in the 2016 election. De La Fuente had sought the Democratic Party's nomination during their presidential primaries. De La Fuente did not win any delegates to the 2016 Democratic National Convention, but he came in fourth by total votes received. De La Fuente founded the American Delta Party and ran as its presidential nominee with running mate Michael Steinberg. He was also the presidential nominee of the Reform Party, which had ballot access in Florida, Louisiana, and Mississippi. He received 33,136 votes in the general election, placing him eighth in the popular vote.

Presidential primaries and caucuses of the Republican Party took place in many U.S. states, the District of Columbia, and five U.S. territories from February 3 to August 11, 2020, to elect most of the 2,550 delegates to send to the Republican National Convention. Delegates to the national convention in other states were elected by the respective state party organizations. The delegates to the national convention voted on the first ballot to select Donald Trump as the Republican Party's nominee for president of the United States in the 2020 election, and selected Mike Pence as the vice-presidential nominee.

The 2020 United States presidential election in California was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. California voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate Kamala Harris, the junior senator from California. California had, in the 2020 election 55 electoral votes in the Electoral College, the most of any state. California was one of six states where Trump received more percentage of the two-party vote than he did in 2016. This election also marked the first time since 2004 that the Republican candidate won more than one million votes in Los Angeles County, due to increased turnout statewide.

The 2020 United States presidential election in Idaho was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Idaho voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Idaho has four electoral votes in the Electoral College.

The 2020 United States presidential election in Illinois was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Illinois voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump of Florida, and his running mate, Vice President Mike Pence of Indiana, against Democratic Party nominee, former Vice President Joe Biden of Delaware, and his running mate, Senator Kamala Harris of California. Illinois had 20 votes in the Electoral College. Prior to the 2020 election, all news organizations predicted Illinois was a state that Biden would win, or otherwise considered a safe blue state.

The 2020 United States presidential election in Maine was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Maine voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Maine has four electoral votes in the Electoral College. Unlike all other states except Nebraska, Maine awards two electoral votes based on the statewide vote, and one vote for each congressional district.

The 2020 Colorado Republican presidential primary took place in the US state of Colorado on March 3, 2020.

The 2020 Utah Republican presidential primary took place on Super Tuesday, March 3, 2020.

The 2020 Texas Republican presidential primary took place in Texas, United States, on March 3, 2020, as one of 13 contests scheduled on Super Tuesday in the Republican Party primaries for the 2020 presidential election. The Texas primary was an open primary, with the state awarding 155 delegates towards the 2020 Republican National Convention.

The 2020 Idaho Republican presidential primary took place on March 10, 2020. Six candidates filed to run in the presidential primary.

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.

The 2020 Massachusetts Republican presidential primary took place on March 3, 2020, as one of fourteen contests scheduled for Super Tuesday in the Republican Party presidential primaries for the 2020 presidential election.

The 2020 Florida Republican presidential primary took place on March 17, 2020, as one of the three contests scheduled on that date in the Republican Party presidential primaries for the 2020 presidential election.

The 2020 Oklahoma Republican presidential primary took place on March 3, 2020, as one of fourteen contests scheduled for Super Tuesday in the Republican Party presidential primaries for the 2020 presidential election.

Tennessee state elections in 2020 were held on Tuesday, November 3, 2020. Primary elections for the United States Senate, United States House of Representatives, Tennessee Senate, and Tennessee House of Representatives, as well as various judicial retention elections, were held on August 6, 2020.