Democrats are looking for a referendum on President Donald Trump this midterm election, hoping his divisive style will bring them victories.

He's not even on the ballot, but Trump is arguably the No. 1 issue this Election Day. Halfway through his first term, Democrats say the polarizing president will bring them out in large numbers both nationally and on Long Island.

A big reversal could come in the state Senate, where Democrats are trying to wrest control from Republicans.

MORE: Island Vote 2018 Complete Coverage | Election Results | Track Federal Balance of Power

Hofstra University political science professor Rich Himelfarb thinks the migrant caravan issue and the Brett Kavanaugh Supreme Court hearings have energized Republicans, who he also thinks will turn out in higher-than-usual numbers.

News 12 is told that voter turnout has been high for this election. Twice as many voters in Suffolk County came out to vote compared to 2014, the last time there was a gubernatorial election. This year's turnout did not appear as high as it was for the presidential election of 2016.