What three groups affected Thomas Jefferson getting elected in 1800?

Three key groups that influenced Thomas Jefferson's election in 1800 were the Democratic-Republicans, who rallied grassroots support for his vision of agrarian democracy; the Federalists, whose declining popularity and internal divisions weakened their campaign; and the emerging political activists and newspapers, which played a crucial role in shaping public opinion and mobilizing voters. Additionally, the election showcased a fierce ideological battle between these parties, ultimately leading to a peaceful transfer of power that underscored the strength of the American democratic process.