George W. Bush responds on Instagram to Bill Clinton’s Twitter challenge

President George W. Bush sent an incredible reply after President Bill Clinton asked why he wasn’t on Twitter on November 12.

Bill Clinton questioned George W. Bush with a tweet saying he received his copy of 41: A Portrait of My Father, the biography of former President George H.W. Bush written by his son.

In the message, Bill Clinton asked why George W. Bush had not joined Twitter.

George Bush responded on another social media site, Instagram. He asked why Bill Clinton didn’t have an Instagram account. His message included the hashtag “#BrotherFromAnotherMother”.

“Thanks, 42! Hope you like the book about your pal, #41. #HowAreYouSTILLNotOnInstagram #PresidentialGrammers?”

This is almost certainly the first time two former presidents have referred to themselves as brothers from another mother.

Both George W. Bush and Bill Clinton could find themselves involved in the 2016 presidential race. Bill Clinton’s wife, Hillary Clinton, is widely considered the Democratic frontrunner and there is mounting speculation George Bush’s brother, former Florida Governor, Jeb Bush, could run on the Republican side.