Don't ask him again. Former House speaker Newt Gingrich has said he's staying in the GOP presidential race under any and all circumstance until the party's nominating convention in August. Appearing on CBS's This Morning show, Gingrich boasted that he has "176,000 donors at Newt.org" who want him to stay in the race. When asked what circumstances could possibly lead him to withdraw, Gingrich answered "Probably none," despite the fact that he's trailing far behind frontrunners Mitt Romney and Rick Santorum. The former Georgia congressman has only won primaries in his home state and in South Carolina.