President Joe Biden made light of his adversaries and himself at Saturday night’s White House Correspondents’ Dinner. He was the first President in six years to attend the annual dinner. “I’m really excited to be here tonight with the only group of Americans with a lower approval rating than I have,” Biden joked to the crowd of Washington political figures, journalists and celebrities. “We had a horrible plague followed by two years of Covid,” he added. “Just imagine if my predecessor came to this dinner this year, now that would really have been a real coup if that occurred.” Former President…