Donald Trump Accuser Voted Incognito

One of Donald Trump's accusers already cast her vote for president ... and she went to the polls undercover, out of fear.

Mindy McGillivray -- who claims Trump grabbed her ass at Mar-a-Lago in 2003 -- went to a Florida polling place this week. She stopped by Trump's hotel afterwards for the photo op.

Mindy says she went in disguise so she wouldn't get harassed. Trump is neck and neck with Hillary in the Sunshine State, so she feared lots of people would be angry at her.

Her plan worked ... she slipped in and out without detection.

Mindy and one of the other Trump accusers say they're ready to go to war if Donald sues them.