sentences:  With the secession of several states, Lincoln's Republicans enjoyed large majorities in both houses of Congress.War Democrats such as Andrew Johnson of Tennessee also provided support for many of Lincoln's policies, though Copperhead Democrats advocated peace with the Confederacy.From the start, it was clear that bipartisan support would be essential to success in the war effort, and any action, such as the appointment of generals, could alienate factions on both sides of the aisle.