Amid comparisons of Watergate and possible Trump campaign-Russia ties, this PoliticsPA headline caused a double take Wednesday: “Exclusive: Houlahan Adds Plumbers Endorsement to Early Campaign Moves.” Actually, Plumbers Local 690 is backing Democrat Chrissy Houlahan, a prospective 2018 challenger to U.S. Rep. Ryan Costello, R-Chester. But for those who remember Richard Nixon's covert “White House plumbers” — a leak-plugging unit that went on to burglarize the Democratic National Committee's Watergate hotel headquarters — it's a relief that G. Gordon Liddy & Co. aren't involved in this congressional race. … Misdemeanor charges against the Predators fan who threw a dead catfish onto the PPG Paints Arena ice during Monday's first Stanley Cup Final game were dropped last week. That's lucky for him, as his prospective legal defense faced challenges. The Tennessean reports that a former Nashville-area assistant prosecutor, who had offered that fan free legal representation but would have needed a Pennsylvania lawyer's help, tweeted: “Where you at Flyer-fan-attorneys in PA??” More to the point, someone better at criminal defense than the Flyers are at hockey would have been needed. After all, Philadelphia hasn't won the Cup since 1975. Somehow, reminding Flyers fans of that fact — attorneys or not — never gets old.