When Presidents Attack (on Social Media)

It's an old-fashioned hashtag war. You know, just like Washington and Adams used to do.

Former U.S. presidents Bill Clinton (L) and George W. Bush share a laugh during an event launching the Presidential Leadership Scholars program at the Newseum September 8, 2014 in Washington, DC.

Photo by Chip Somodevilla/Getty Images

Former Presidents Bill Clinton and George W. Bush are taking the buddy comedy to social media.

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