Obama had his A-game working as he ripped Bill Belichick, Rob Gronkowski and even attempted a Boston accent. Fittingly, the joke that fell most flat ... his Deflategate material. The Pats did not seem amused.
Darrelle Revis was also at the event ... which could've been awkward since he left the team this offseason to sign with the rival NY Jets.
Pats' Super Bowl hero Malcolm Butler (who was singled out by Obama) told TMZ Sports it was no big deal having him there. "We all went to war together, we all practice and work hard together. He earned it just like we did."