GOP candidate Herman Cain stumps while weighing whether he will remain in the 2012 presidential race. CNN's Jim Acosta Reports.
By Wolf Blitzer, CNN
(CNN) - It looks like the gloves are beginning to come off between Mitt Romney and Newt Gingrich. The two Republican presidential front-runners are starting to go after each other after trying to stay above the fray over the past many weeks and months.
This should not be surprising since they are in a fierce battle for the party’s nomination and the clock is ticking. Iowa, New Hampshire, South Carolina, Nevada and Florida are coming up quickly.
Is it a bird? Is it a plane? No, it's "Jetman" and this time he's flying alongside real jets. CNN's Jeanne Moos reports.