Holy congressional probe, Robin! Former FBI chief Robert Mueller is the hero America needs to investigate Russia’s meddling into the 2016 presidential election, his former second-in-charge said Sunday. “A line in New York would be Batman’s back to save Gotham, but I think in this case, Batman is back to save America,” Timothy Murphy told John Catsimatidis during an interview on “The Cats Roundtable.” Murphy served as the agency’s deputy director under Mueller, who was named as a special counsel in the investigation this week, following James Comey’s ouster as FBI director. Murphy insisted any investigation headed by his old...