Several key states are perennially slow vote counters. Others have invested in speeding up the process. But if it’s a very close race, don’t expect a quick resolution.

Heading into election day, polls showed the race to be exceptionally close, as both candidates focused on a small clutch of voters in key swing states.

We do have some breaking news from the decision desk. NBC News can now project that Donald Trump has won the state of Wisconsin, which means he is the winner of this race and will return to the White House as this country's 47th president.