The race to the presidency can change at the drop of the hat. CNN.com Live is your home for all the latest news from the campaign trail.
Today's programming highlights...
8:30 am ET - GSA spending controversy hearing - Another day, another Congressional hearing on questionable spending at the General Services Administration. This time, a House infrastructure subcommittee takes up the controversy.
10:15 am ET - Discovery heads to new home - Space shuttle Discovery, which left Kennedy Space Center for the final time earlier today, arrives at Dulles International Airport en route to its new, permanent home at the Smithsonian.
10:30 am ET - 'Baby Gabriel' trial - Opening statements are expected in the trial of Tammi Smith, who's accused of forgery and custodial interference in the case of missing child Gabriel Johnson.
12:30 pm ET - White House briefing - The Secret Service and GSA scandals will likely top Press Secretary Jay Carney's agenda with the White House press corps.
4:50 pm ET - NASCAR honored at White House - President Obama welcomes 2011 NASCAR Sprint Cup champion Tony Stewart to the White House.
7:20 pm ET - GOP candidates attend dinner - GOP presidential candidates Mitt Romney and Newt Gingrich speak at a dinner in Lancaster, Pennsylvania.
CNN.com Live is your home for breaking news as it happens.