What political party was Thomas jefferson in?
he founded the Democratic-Republican Party. The Democratic–Republican Party was founded by Thomas Jefferson and James Madison about 1792. Supporters usually identified themselves as Republicans, but sometimes as Democrats. The term “Democratic Republican” was also used by contemporaries, but mostly by the party’s opponents. It was the dominant political party in the United States from 1800 to 1824, when it split into competing factions, one of which became the modern Democratic Party.
