Lincoln, a moderate Republican, had to navigate a contentious array of factions with friends and opponents from both the Democratic and Republican parties. His allies, the War Democrats and the Radical Republicans, demanded harsh treatment of the Southern Confederates. Anti-war Democrats (called "Copperheads") despised Lincoln, and irreconcilable pro-Confederate elements plotted his assassination.
List of all the factions that Lincoln had to deal with, and if they were his allies or enemies.
Lincoln's allies were the War Democrats and the Radical Republicans. Lincoln's enemies were the Southern Confederates, Anti-war Democrats and pro-Confederate groups