Talk about awkward family reunions.
Odds are against them running into each other at a picnic, but Obama could technically be joined by Rush Limbaugh and George W. Bush, too. Yup, they're one big, uh, happy family.
The site, which claims to be the world's largest online family history resource and is featured on the NBC show "Who Do You Think You Are?", says that Obama and Palin are 10th cousins through an ancestor named John Smith. The president is also 10th cousins (once removed) with Limbaugh through Richmond Terrell.
The Bush political dynasty could hypothetically claim both Obama and Palin, who are each 11th cousins of former President George W. Bush.
Palin happens to be related to conservative commentator Ann Coulter and, more surprisingly, Senate Majority Leader Harry Reid. They're all cousins through John Lathrop, who was the minister of an illegal independent church in England and was exiled to the U.S.
And you probably thought there were big disagreements in your family.
It seems Ancestry.com finds these types of connections every year. In 2009 they announced that Obama was related to Warren Buffett, his 7th cousin three times removed, and Brad Pitt, his 9th cousin. In 2008, they revealed that Palin is a distant cousin to both Franklin D. Roosevelt and Princess Diana.