(CNN) - As Mitt Romney heads to Tampa on the first day of events for the GOP convention, President Barack Obama hits the campaign trail in Iowa and Colorado Tuesday.
See a schedule of the day's events after the jump.
9:30 a.m. ET - House Speaker John Boehner and Rep. Darrell Issa address the California Delegation Brunch in Tampa, Florida.
10 a.m. ET - Gov. Martin O’Malley, Obama Senior Advisor Robert Gibbs, CarMax Founder Austin Ligon, Somerville, MA Mayor Joe Curtatone, former AMPAD Employee and Bain Victim Randy Johnson appear at the DNC "Counter Convention" Press Conference in Tampa.
11:05 a.m ET - Romney arrives in Tampa.
12:05 p.m. ET - Rep. Paul Ryan, Romney's running mate, arrives in Tampa.
1 p.m. ET - Former Sen. Rick Santorum, Gov. Rick Perry, Rep. Michele Bachmann and Rep. Louie Gohmert appear at the RNC for Life and Family Research Council's "Treasure Life" event.
1:10 p.m. ET - Obama Delivers remarks at a campaign event at Iowa State University in Ames, Iowa.
1:30 p.m. ET - RNC Co-chairman Sharon Day, Cyndi Graves (President of Florida Federation of GOP Women) Katie Harbath (Manager for Policy – Facebook) and Anita MonClief (True the Vote and Editor-in-Chief of Emerging Corruption) speak on the WomanUp "Advocacy Means Business" Panel in Tampa.
7 p.m. ET - Boehner, Reince Priebus, congressional candidate Mia Love, Janine Turner, Santorum and Rep. Cathy McMorris Rodgers address the Republican National Convention in Tampa.
7:20: ET - Obama Delivers remarks at a campaign event at Colorado State University in Fort Collins, Colorado.
8 p.m. ET - Sen. Kelly Ayotte, Gov. John Kasich, Gov. Mary Fallin, Gov. Bob McDonnell and Gov. Scott Walker address the Republican National Convention in Tampa.
9 p.m. ET - Gov. Brian Sandoval, Sher Valenzuela (small business owner, candidate for DE Lt. Governor), Sen. GOP Candidate Ted Cruz, Artur Davis and Gov. Nikki Haley address the Republican National Convention in Tampa.
10 p.m ET - Mrs. Luce' Vela Fortuño, Ann Romney and Gov. Chris Christie address the Republican National Convention in Tampa.