Despite some intra-party opposition from Salmon Chase and the Radical Republicans , Lincoln won his party 's nomination at the 1864 National Union National Convention . Rather than re-nominate Vice President Hannibal Hamlin , the convention selected Andrew Johnson of Tennessee , a War Democrat , as Lincoln 's running mate . John C. Frémont ran as the nominee of the Radical Democracy Party , which criticized Lincoln for being too moderate on the issue of racial equality , but Frémont withdrew from the race in September . The Democrats were divided between the Copperheads , who favored immediate peace with the Confederacy , and War Democrats , who wished to continue the war . The 1864 Democratic National Convention nominated McClellan , a War Democrat , but adopted a platform advocating peace with the Confederacy , which McClellan rejected
1864 Democratic National Convention
1864 Democratic National Convention
1864 United States presidential election