Voters blame Trump, pointing to the Republican president's tariff policies and the war he started with Iran.

Trump has been criticized in the past for voting by mail despite his long history of railing against that method of submitting ballots.

President Donald Trump's political groups have spent more than one-quarter of a billion dollars to bolster Republicans in the final stretch of this year's midterm elections, an unprecedented amount for a sitting president that underscores the stakes on Nov. 3.