(CNN) - The candidates and their campaigns hit the trail Monday, making stops in New Hampshire, Massachusetts, Missouri, Indiana, Colorado and Arizona.
See their full schedules after the jump.
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10:50 a.m. ET - Mitt Romney holds an event at the Portsmouth Fishing Pier in New Hampshire with Sen. Kelly Ayotte.
Later in the day, the presumptive Republican presidential nominee attends a private fundraiser in Boston.
Also on the schedule Monday, Vice President Joe Biden appears at campaign events in Kansas City, Missouri and Munster, Indiana.
Meanwhile, Michelle Obama begins a visit to four western battleground states, stopping Monday for an official event at a Warrior Game in Colorado Springs, Colorado.
Later Monday, she goes to Tucson, Arizona for an official greeting event with youth volunteers from an urban farm. She will then speak at a campaign fundraiser.