President Biden made a personal stop here on Friday to mark the 50th anniversary of Amtrak and plug the billions of investments in passenger and freight rail proposed in his $2.25 trillion infrastructure plan. The atmosphere was quintessential Biden, who spent much of his time as a U.S. senator commuting on Amtrak from Delaware to Washington, an experience he reflected on at length during his remarks. He joked about falling asleep on the train and missing the Wilmington stop, ending up instead in Philadelphia. “Amtrak became my family,” he said. “You get to know everybody, you get to know the folks. … They work like the devil. They really, really do.”