A seemingly endless election season all comes down to tonight. Well, possibly tomorrow morning, or maybe even longer than that.
Hillary Clinton enters Election Day with a clear lead in the polls, which could mean for an early result. But if the polls aren't correct, and Donald Trump wins a few key states, we could be in for a very long night.
Clinton is banking in part on high turnout to carry her over the finish line Tuesday. Roughly half the states with advance voting have reported record turnout, including Florida and Nevada, which have booming Hispanic populations, a possible good sign for Clinton.
Without victories in Florida and Nevada, Trump's path to 270 electoral votes would be exceedingly narrow. He already must win nearly all of the roughly dozen battleground states.
See the chart below showing when the presidential race was called in each of the past 10 elections, including 2000 when it was called prematurely.