walker did and you have this big bloated staff, it's hard to sustain that when you don't have the money coming in. >> popular governors they drop out, but the three top people in the republican campaign right now, if you will, none of them have ever been elected to any political office. and they're doing really well. >> and that was his big thing. scott walker is a young man but he has only had a job in elected office. he's a lifelong elected politician. >> we'll have more on this, dana. standby. i want to get to other political news we're following calls for ben carson to drop out of the gop race after antimuslim remarks. go to senior washington correspondent joe johns looking into the story for us. what's the latest, joe. >> wolf, democrats are piling on. most americans are expressing outrage and even some conser conservatives are distancing themselves from ben carson's marks. so far no apologies from the candidate himself. he's not walking it back. the carson campaign says this is what the candidate believes. and tonight he's standing by it.