The Northeast and Upper Midwest provided the industrial resources for a mechanized war producing large quantities of munitions and supplies and financing the war. The Northeast and Midwest provided soldiers, food, horses, financial support, and training camps. Army hospitals were set up across the Union. Most Northern states had Republican governors who energetically supported the war effort and suppressed anti-war subversion, particularly that that arose in 1863–64. The Democratic Party strongly supported the war at the beginning in 1861, but by 1862, was split between the War Democrats and the anti-war element known as Peace Democrats, led by the extremist "Copperheads". The Democrats made major electoral gains in 1862 in state elections, most notably in New York. They lost ground in 1863, especially in Ohio. In 1864, the Republicans campaigned under the National Union Party banner, which attracted many War Democrats and soldiers and scored a landslide victory for Lincoln and his entire ticket against Democratic candidate George B. McClellan.
