President Barack Obama and Mitt Romney are planning to visit the site of tonight's debate in Denver this afternoon, before spending some down time at their hotels in advance of the big event.
Aides to Romney say he spent some time today reviewing briefing books and policy at his Denver hotel.
In a coin toss, Obama has been selected to get the first question in tonight's domestic policy debate -- the first half of which will focus on the economy.
Romney has pinned his campaign on the argument that Obama has failed to adequately juice up the economy -- but recent polls reflect growing public optimism about the economy and about Obama's leadership.
Romney is still looking to rebound from the video that surfaced in which he told donors that it's not his job to care about the 47 percent of Americans who don't pay federal income taxes. In a new ad, he acknowledges the struggles of Americans living paycheck to paycheck, and says his economic plan will "get America back to work and strengthen the middle class."