Republicans loyal to Lincoln created a new name for their party in convention at Baltimore, Maryland during the first week in June 1864 in order to accommodate the War Democrats who supported the war and wished to separate themselves from the Copperheads. This is the main reason why War Democrat Andrew Johnson was selected to be the vice presidential nominee as then-current Vice President Hannibal Hamlin was not nominated. The National Unionists supporting the Lincoln–Johnson ticket also hoped that the new party would stress the national character of the war.