Former New Jersey Governor and GOP presidential candidate Chris Christie joined a recent episode of the “Hacks on Tap” podcast, where he gave President Biden advice on how to beat former President Trump in their upcoming debates. Christie, a former Trump ally, was one of the loudest critics of the former president in this cycle’s primary. He told podcast hosts David Axelrod — the former senior adviser to former President Obama — and Mike Murphy, a Republican consultant, that he’d now give Biden similar advice he gave Trump before the 2020 presidential debates. “It’s the same advice I gave to...