A federal judge has struck down Pennsylvania’s same-sex marriage ban, the latest in a series of marriage equality victories sweeping the country. The ruling came in response to a lawsuit from same-sex couples that at the time marked the first case seeking to overturn a gay marriage ban on the state level since the U.S. Supreme Court decision rejecting the federal Defense of Marriage Act. Since then, 13 other courts have upheld marriage equality. With Tuesday’s ruling in Pennsylvania, same-sex marriages are now legal in the entire northeastern United States.