Countdown to 1st Trump-Clinton debate faceoff
09:35Ahead of what could be the most consequential debate in decades, Chris Hayes talks with Trump advisor Omarosa Manigault and Clinton campaign manager Robby Mook about their candidates' game plans.
Ahead of what could be the most consequential debate in decades, Chris Hayes talks with Trump advisor Omarosa Manigault and Clinton campaign manager Robby Mook about their candidates' game plans.