President Joe Biden is hoping to get under Donald Trump’s skin during their first debate and induce him to reveal the unhinged version of himself he shows to fans at rallies, in hopes of horrifying viewers who haven’t seen much of him since his presidency ended. The president’s advisers are combing through Trump’s recent remarks to help identify potential triggers that might knock him off balance and send him into an off-topic tirade, and Washington Post columnist Eugene Robinson told MSNBC’s “Morning Joe” that should be relatively easy to do. “They might be very surprised to hear Trump 2024 w…