The day after the second presidential debate in St. Louis, Donald Trump headed to Pennsylvania, a key battleground state that he's hoping holds the keys to the White House.
Who's leading the Pennsylvania polls?
But most polls show Hillary Clinton with a clear advantage in the Keystone State. The RealClearPolitics polling average finds the former secretary of state leading the Manhattan businessman 48% to 39% in a head-to-head face-off.
Why is Pennsylvania so important?
"Western Pennsylvania is driving the state's rightward drift — its voting patterns now resemble greater Appalachia's more than those of the Philadelphia suburbs," he wrote.
And FiveThirtyEight predicts that there is an 87% chance that Clinton will win Pennsylvania.