The race to the Republican presidential nomination remains up in the air. Watch CNN.com Live for up-to-the-minute news and views from the campaign trail.
Today's programming highlights...
Continuing coverage - New iPad goes on sale - We'll be inside and outside Apple stores nationwide as fans purchase the latest incarnation of the iPad.
8:25 am ET - Romney at breakfast - GOP presidential candidate Mitt Romney returns to the campaign trail with an appearance at a pancake breakfast in Rosemont, Illinois. He'll later travel to Puerto Rico for a rally in Old San Juan at 7:00 pm ET.
9:00 am ET - Clooney participates in Sudan protest - Actor/activist George Clooney will join others outside the Sudanese Embassy in Washington for what's being described as an "action of civil disobedience."
10:00 am ET - Annan briefing on Syria - Former U.N. Secretary-General Kofi Annan addresses the U.N. Security Council on his recent trip to strife-torn Syria.
11:30 am ET - Santorum rally - GOP presidential candidate Rick Santorum rallies supporters in Osage Beach, Missouri. He'll later speak at a high school outside Chicago at 3:00 pm ET.
12:20 pm ET - Obama on the campaign trail - President Obama is also getting in the campaign spirit, speaking at a Chicago re-election reception. He'll then go to Atlanta for remarks at a campaign events at Tyler Perry Studios at 8:25 pm ET.
3:00 pm ET - Gingrich in New Orleans - GOP hopeful Newt Gingrich looks to keep his presidential aspirations alive as he meets with voters at a New Orleans restaurant.
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