In addition to legal restrictions on when officials can count mail ballots, long lines at polling places at the end of the day can also slow counting, as voters who are in line at closing time are still allowed to vote.

While many Americans pay attention to the popular vote in the race for the White House (and the candidates often mention their success with it), the winner of the presidency is determined by the Electoral College and the number of electoral votes they get.

After months of campaign ads, Americans will finally get to decide who the next president of the United States will be. However, voters will also have the chance to decide on several other important races and propositions on Tuesday.