Abraham Lincoln pardoned Joe Biden's great-great-grandfather in 1864. Moses J.
Robinette had been convicted of a brawl during the American Civil War. Biden has a portrait and a bust of Lincoln in the Oval Office. Lincoln was the 16th President of the United States from 1861 to 1865 and remains extremely popular today.. Scientists recently published an analysis of the performance of all 45 US presidents to date. Lincoln takes first place. His admirer Biden comes in 14th place.