Which political party was the first to have Abraham Lincoln as its president?

Abraham Lincoln was the first president from the Republican Party, which he helped establish in the 1850s as an anti-slavery party. The Republican Party was founded in response to the growing tensions over slavery and aimed to unite a coalition of former Whigs, free soilers, abolitionists, and disaffected Democrats. Lincoln's election in 1860 marked the Republican Party's emergence as a major political force in the United States. His presidency is often seen as a pivotal moment for the party, and he remained a key figure in shaping its direction and policies during a time of significant national crisis. The other political parties mentioned either predated the Republican Party or did not have Lincoln as their leader, underscoring the importance of the Republican Party in American history.