WASHINGTON (AP) — A decades-long movement to reshape the American political map took a further step Thursday as the House of Representatives approved a bill to make the nation's capital the 51st state. Approval came by a 216-208 vote along strict party lines. Republicans oppose the idea given that the new state would be overwhelmingly Democratic — and the proposal faces a far tougher road in the Senate, where even full Democratic support isn't guaranteed. The legislation proposes creating a 51st state with one representative and two senators, while a tiny sliver of land including the White House, the U.S. Capitol and the National Mall would remain as a federal district. Instead of the District of Columbia, the new state would be known as Washington, Douglass Commonwealth — named after famed abolitionist Frederick Douglass, who lived in Washington from 1877 until his death in 1895.