2016 Republican National Convention in the context of Party platform

Donald Trump ran a successful campaign for the 2016 U.S. presidential election. He formally announced his campaign on June 16, 2015, at Trump Tower in New York City, initially battling for the Republican Party's nomination. On May 26, 2016, he became the Republican Party's presumptive nominee. Trump was officially nominated on July 19 at the Republican National Convention. He chose Mike Pence, the sitting governor of Indiana, as his vice presidential running mate. On November 8, Trump and Pence were elected president and vice president of the United States.

Trump's populist positions in opposition to illegal immigration and various trade agreements, such as the Trans-Pacific Partnership, earned him support especially among voters who were male, white, blue-collar, working class, and those without college degrees. Many voters in the Rust Belt, who gave Trump the electoral votes needed to win the presidency, switched from supporting Bernie Sanders to Trump after Hillary Clinton won the Democratic nomination.

The Republican National Convention (RNC) is a series of presidential nominating conventions held every four years since 1856 by the Republican Party in the United States. They are administered by the Republican National Committee. The goal of the Republican National Convention is to officially nominate and confirm a candidate for president and vice president, adopt a comprehensive party platform and unify the party, as well as publicize and launch the fall campaign.

Delegates from all fifty U.S. states and from American dependencies and territories, including Puerto Rico and the Virgin Islands, attend the convention and cast their votes. Like the Democratic National Convention, the Republican National Convention marks the formal end of the primary election period and the start of the general election season. In 2020, all parties replaced the usual conventions with short online programs.

Presidential primaries and caucuses of the Republican Party took place within all 50 U.S. states, the District of Columbia, and five U.S. territories between February 1 and June 7, 2016. These elections selected the 2,472 delegates that were sent to the Republican National Convention. Businessman and reality television personality Donald Trump won the Republican nomination for president of the United States.

A total of 17 major candidates entered the race. Prior to the 2020 Democratic Party presidential primaries, this was the largest presidential primary field for any political party in American history. From early in the primary season, the race was characterized as a wide and diverse contest with no clear frontrunner. Early polling leaders included former Florida Governor Jeb Bush and Wisconsin Governor Scott Walker, among others. The race was disrupted by the entry of Trump in June 2015, who quickly and unexpectedly rose to lead polls for the rest of the primary season, with the exception of a period in the fall when neurosurgeon Ben Carson experienced a surge in support.