Given the question: Andrew Johnson (December 29 1808 July 31 1875) was the 17th President of the United States serving from 1865 to 1869. Johnson became president as Abraham Lincoln's vice president at the time of Lincoln's assassination. A Democrat who ran with Lincoln on the National Union ticket Johnson came to office as the Civil War concluded. The new president favored quick restoration of the seceded states to the Union. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer is:
Office Holder