A day after a federal Oregon judge made a similar ruling, the Washington Post is reporting that a U.S. District Court Judge in Pennsylvania today ruled that state's ban on gay marriage is unconstitutional. 

Here's the Post's synopsis of the quickly-changing national landscape:

Since the Supreme Court’s decision last June, federal judges have

ruled in favor of same-sex marriage advocates in Utah, Oklahoma,

Kentucky, Virginia, Illinois, Texas, Tennessee, Michigan, Indiana, Ohio,

Idaho and Oregon. Those judges have ruled either that states must allow

same-sex marriage or afford legal recognition to couples who married in

other states.

Virtually all of the rulings since the Supreme Court’s DOMA decision

have cited the same two protections in weakening or striking down

altogether same-sex marriage bans in states. Pennsylvania was the last

Northeastern state to have a same-sex marriage ban on the books.