From Time Magazine's list of The 10 Most Notorious Presidential Pardons, coming in at number 7:
Indicted on 14 criminal counts on April 5, 1974, the owner of the New York Yankees plead guilty to obstruction of justice and conspiring to make illegal contributions to President Richard Nixon's re-election campaign. Steinbrenner, a major Republican donor, allegedly knew the money he was donating was not going through regular election procedures. Not wanting to appear soft on crime, President Ronald Reagan would only pardon Steinbrenner if the Yankees' owner admitted to the crime.He spent the rest of his life giving money to Republicans, supposedly legally. He was an ass, and he won't be missed here. In fact, he's one less rich Republican to donate mostly to Republican causes (a quick search at Open Secrets reveals that he did give money to Democrats). All the contributions for President went to all the recent Republican candidates. So fuck him.
One odd note, his Yankees only won the World Series under Democratic Presidents.