Where presidential candidates go says a lot about how they think they can win. That's why Pennsylvania is getting a lot of face time with the candidates this year.

Vice President Kamala Harris and former President Donald Trump remain deadlocked less than seven weeks before the Nov. 5 U.S. presidential election, according to new polls released on Thursday that also show a tight race in the key state of Pennsylvania.

The state’s closely watched Senate race shows a similarly tight contest, and 93 percent of registered voters say they are certain to vote.