U.S. Transportation Secretary Sean Duffy asked members of Congress in a letter on Wednesday to give Amtrak the green light to rename Penn Station, setting up the possibility the nation’s busiest train hub could be rechristened after President Donald Trump. The federal government has led the effort to rebuild the dilapidated station since last year, when Trump stripped control of the project from the MTA and turned it over to Amtrak. White House officials have since floated the idea of renaming Penn Station, which is owned by federally run Amtrak, after Trump. Duffy’s request came in a letter to Senate...