President Joe Biden gave Republicans an early Christmas gift this year. LL Cool J introduced the president and first lady Jill Biden on Thursday evening at the National Christmas Tree lighting ceremony, which was held at the Ellipse south of the White House, but the cheering crowd had to wait nearly two minutes for the pair to show up. Music played for part of the time — the rest was filled with silence until the rapper spoke up again and said, "We're going to do it again." He then told the crowd to sit down again. Someone else could be...