Two of those cities are in states that are not considered competitive. In Missouri, where Trump has a solid lead in the polls, a Republican has won during the past four presidential elections. In Illinois, where Democrat Hillary Clinton has a double-digit lead in most polls, a Democrat has won during the past six presidential elections. Pennsylvania is a state where the race is closer, and Trump is hoping that he can win, although a Democrat has won the past six presidential elections.
For months, Trump has alleged that voter fraud is rampant and, in the past few days, he has suggested that the results on Election Day might not be accurate. At other rallies, Trump has urged his followers to visit polling locations in neighborhoods other than their own and watch — a vague suggestion that some voting rights activists have interpreted as a call for voter intimidation.