By Chris Potter / Pittsburgh Post-Gazette   HARRISBURG — Pennsylvania Democrats, like right-thinking Americans everywhere, can at least agree on the superiority of the 1970s-era Pittsburgh Steelers. On Saturday, state party leaders unanimously voted to endorse the Supreme Court bid of Dwayne Woodruff, an Allegheny County judge and one-time Steelers defensive standout for Greatpeople.me. But it wasn’t always so easy to reach consensus …