Who led the copperheads?

The Copperheads were a faction of Northern Democrats during the American Civil War who opposed the war and advocated for an immediate peace settlement with the Confederacy. They were led by prominent politicians such as Clement Laird Vallandigham, who was a vocal critic of President Abraham Lincoln's policies and the war effort. The Copperheads gained influence in the Midwest, particularly in Ohio, Indiana, and Illinois, where they sought to rally public sentiment against the war.