At a Pennsylvania campaign rally Sunday, Donald Trump cast doubt on the Iowa Poll. "They suppress. And it actually should be ...

The big picture: Days before the election, the final Des Moines Register/Mediacom Iowa Poll of the cycle showed Vice ...

Trump has just repeated his claim that there are "13,099 murderers" who have come to the US in the last three years. This ...

As Americans await election results, many are looking to the polls for clues. From the margins of error to methodology, ...

Given the political makeup of Iowa, it could also give some signals about how other states with similar demographics might ...