The race to the Republican presidential nominations 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...
9:00 am ET - British PM arrives at White House - After spending Tuesday night checking out "March Madness" hoops action, British Prime Minister David Cameron is welcomed to the White House by President Obama, Vice President Biden and their wives. Obama and Cameron will later hold a news conference at 12:05 pm ET.
10:00 am ET - George Clooney on Capitol Hill - Actor/activist George Clooney has played a leading role in informing the world about the Sudan crisis for years. Today, he talk about the situation in the region before the Senate Foreign Relations Committee.
11:35 am ET - Santorum in Puerto Rico - Fresh off his victories in Alabama and Mississippi, GOP presidential candidate Rick Santorum spends his day in Puerto Rico, where he'll meet with the island's governor in Old San Juan.
1:30 pm ET - Don Riddell live chat - World Sport's Don Riddell drops by CNN.com Live to talk about this summer's London Olympics! He'll answer your questions live via Twitter @DonRiddellCNN.
4:30 pm ET - Gingrich rally - GOP hopeful Newt Gingrich looks to continue his presidential aspirations in Illinois, as he holds a campaign rally in Rosemont.
6:00 pm ET - Blagojevich pre-prison news conference - One day before he heads to Colorado to begin a 14-year federal prison sentence, former Illinois Gov. Rod Blagojevich speaks with reporters outside his home.
CNN.com Live is your home for breaking news as it happens.