In a surprise move, Pennsylvania Governor Tom Corbett (R) has announced that he will not appeal yesterday’s federal district court decision striking down the state’s exclusion of gay couples from marriage. That makes Pennsylvania the nineteenth state where same-sex marriage will be ongoing.

Gov. Corbett explained his decision thus:

I have thoroughly reviewed Judge Jones’ opinion in the Whitewood case. Given the high legal threshold set forth by Judge Jones in this case, the case is extremely unlikely to succeed on appeal. Therefore, after review of the opinion and on the advice of my Commonwealth legal team, I have decided not to appeal Judge Jones’ decision.