Former President Bill Clinton poked fun at former President George W. Bush for not being on Twitter, while sending out Presidents Day greetings to the four other living presidents.
In his message to the 43rd president, Clinton included the hashtag "#HowAreYouNotOnTwitter?"
Clinton also included President Barack Obama, George H.W. Bush, and Jimmy Carter in his message.
One of Clinton's followers reminded him that he created a Twitter account because comedian Stephen Colbert persuaded him to less than a year ago in April 2013, Time
"If I remember correctly, you're only on Twitter because someone made you," Tweeted Colby Gallagher.
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