Abraham Lincoln, Theodore Roosevelt and Herbert Hoover all belonged to what political party?

The Republican Party, commonly referred to as the GOP (abbreviation for Grand Old Party), is one of the two major contemporary political parties in the United States, the other being its historic rival, the Democratic Party. The party is named after republicanism, the dominant value during the American Revolution. Founded by anti-slavery activists, modernists, ex-Whigs, and ex-Free Soilers in 1854, the Republicans dominated politics nationally and in the majority of northern States for most of the period between 1860 and 1932.

There have been 19 Republican presidents, the most from any one party. The first was 16th president Abraham Lincoln, who served from 1861 to 1865, when he was assassinated, and the most recent being 45th and current president Donald Trump, who took office on January 20, 2017.