If you were upset with how the last debate went, this is your chance to influence Sunday's sparring between the two candidates.
ABC is offering its viewers a chance to submit and vote on questions that will be posed to the candidates live on television.
You can submit a question here.
ABC is hosting the "town hall" style debate at Washington University in St. Louis. The contest begins at 9 p.m. and will run for 90 minutes without commercial breaks.
