Presidency of Andrew Johnson
Andrew Johnson was the 17th president of the United States from April 15, 1865, after the assassination of President Abraham Lincoln, to March 4, 1869. Johnson was a member of the Democratic Party before the Civil War and had been Lincoln's 1864 running mate on the National Union ticket, which was supported by Republicans and War Democrats.
Source: Wikipedia — Presidency of Andrew Johnson (CC BY-SA 4.0)