A Key(stone) Flip

For the third time in state history, Pennsylvania was the state with the largest number of Electoral College votes to flip in a presidential election. The Keystone State also held that mark in 1860 (with 27 EV) when it flipped from Democrat to Republican backing Abraham Lincoln after James Buchanan in 1856 and in 1936 (36 EV) from Republican to Democrat supporting Franklin Roosevelt four years after voting for President Herbert Hoover. Since the two-party era began in 1828, New York has been the most elector-rich state to flip in a nation-leading 22 cycles. Florida and Kentucky are next at four cycles with California, Missouri, and Ohio tied with Pennsylvania at three.