Debate prep
The rivals spent the day preparing for their big battle.
Clinton participated in mock debates with her tart-tongued former aide Philippe Reines playing Trump. In one practice debate, Reines assumed the character of the unpredictable nominee by praising Clinton for her role as a pioneer for women, campaign sources said.
Reines even wore the kind of signature red tie that Trump favors and adopted his characteristic hand gestures in a bid to fully prepare Clinton for her unpredictable foe.
The Republican nominee has watched videos of Clinton, but his preparation has been less intense than his opponent's, in keeping with his more freewheeling style. He did not hold mock debates, for instance, with someone standing in for Clinton.