A key swing state has flipped in favor of Donald Trump, according to a new Electoral College map projection. RealClearPolitics' polling tracker shows that, with no toss-up states, Michigan has flipped in favor of Trump,

Generally, states award all their electoral college votes to whoever wins the poll of ordinary voters in the state. For example, if a candidate wins 50.1% of the vote in Texas, they are given all of the state's 40 electoral votes. A candidate who won a state by a landslide would still pick up the same number of electoral votes.

Real Clear Polling has moved Minnesota to a toss-up after having considered the state leaning toward the vice president.

In the United States, the presidential candidate who gets the most votes isn't necessarily the candidate who wins. This is the Electoral College — explained.