(CNN) - Mitt Romney is on the trail Sunday for an event in Colorado. The rest of the field - President Barack Obama, Vice President Joe Biden, and GOP vice presidential candidate Paul Ryan - are all taking a day off from campaigning. Biden's wife, second lady Jill Biden, holds a campaign event in Pennsylvania.
See the full schedule after the jump.
11 a.m. ET: Jill Biden holds a campaign event in Pittsburgh, Pennsylvania.
6:25 p.m. ET: Mitt Romney holds a campaign event in Pueblo, Colorado.