Andrew Johnson (allthetropes.org)
Andrew Johnson was the first US President to be impeached. He is generally considered to be one of the worst Presidents, though one could easily argue it’s not entirely his fault. He was the only senator from a seceding state to remain pro-Union, so he was chosen as Lincoln’s running mate to broaden the ticket’s appeal and garner votes from Southern sympathizers. He was never intended to be anything other than a grab for votes. Then Lincoln got shot. Oops.- Andrew Johnson (Wikipedia)
Andrew Johnson (December 29, 1808 – July 31, 1875) was an American politician who served as the 17th president of the United States from 1865 to 1869. He assumed the presidency following the assassination of Abraham Lincoln, as he was vice president at that time. Johnson was a Democrat who ran with Abraham Lincoln on the National Union Party ticket, coming to office as the Civil War concluded. He favored quick restoration of the seceded states to the Union without protection for the newly freed people who were formerly enslaved as well as pardoning ex-Confederates. This led to conflict with the Republican-dominated Congress, culminating in his impeachment by the House of Representatives in 1868. He was acquitted in the Senate by one vote.