presidential pals

George W. Bush and Bill Clinton have adorable social media banter

Democrat vs. Republican. Yale Law vs. Harvard Business. Twitter vs. Instagram. These are the core conflicts of our time — at least, according to the 42nd and 43rd presidents of the United States.

Bill Clinton and George W. Bush engaged in some adorable social media banter Wednesday night, which started with Clinton tweeting a photo of himself reading 41, the younger Bush's book about his father (who happens to also be Clinton's presidential predecessor). Clinton called Bush's book a "touching tribute" but then teased his successor in hashtag form for not having a Twitter account:

Bush, not to be outdone, took to Instagram to respond to Clinton's light-hearted jab. He thanked his "brother from another mother" but poked fun at Clinton's lack of Instagram account:

As for the next battle for these two? We have an idea.