Kamala Harris is almost certain to lose in the presidential election after Donald Trump was predicted to win the key battleground state of Pennsylvania.

Fox News and CNN have projected Trump to win Pennsylvania, Georgia and North Carolina, giving him a total of 266 Electoral College votes, while Harris has 194.

With Nevada, Arizona, Michigan and Wisconsin still undecided, there are still 42 Electoral College votes to be cast in the swing states, making the final outcome uncertain. To win, Harris would have to win all four of those states and every other state that has not yet been called.

According to CNN, Trump is currently polling ahead of Harris in all four undeclared swing states: 51 percent in Nevada and Wisconsin, 52 percent in Michigan and 50 percent in Arizona.

This is a groundbreaking story. More to follow.