Bill Clinton visits John Calipari at Kentucky

Successful people tend to run in the same circles, so perhaps it's no surprise that John Calipari and Bill Clinton have been friends for 25 years.

The former president of the United States stopped by the Kentucky campus to visit his longtime friend Tuesday, and the pair posed for some photos to mark the occasion.

Tyler Ulis and his father James also posed for a photo.

Former Wildcat and current Phoenix Suns standout Devin Booker happened to be on campus, too.