Early voting allows voters to react quickly after debates

WASHINGTON — If Donald Trump or Hillary Clinton scores a high note or commits a blunder in Sunday's presidential debate, millions of voters can respond almost immediately.

They can fill out a mail-in ballot right away or head to a polling location the next day.

More than 45 million people are expected to vote before Nov. 8, either by mail-in ballots or going to early-voting stations. Advance voting is underway in nearly half the 50 states.

At least 403,000 people have voted already, according to data compiled by The Associated Press.

Clinton's campaign is pinning much of its strategy on the early vote, hoping to lock in less-reliable voters.

Trump's campaign is leaning heavily on the party for its get-out-the-vote-effort and counting on rallies and big TV audiences to spur early voting.