Charles Krauthammer: We already tried a first-term Senator and Ted Cruz has no accomplishments he can point to

Charles Krauthammer brings up a very valid concern and criticism about U.S. Senator Ted Cruz (R-TX) running for President.

"His appeal is that I'm the constitutional conservative. I'm the guy with the liquid tongue. I can make the case, and he does. That is what he does all through his career he has done that. I think the problem he's got is that he will have to fight for that constituency although I think he does have an advantage. You can imagine -- it's the kind of constituency Huckabee had in 2008. [If] Huckabee would run again, they would be tussling over that. But as Mara said, a lot of other candidates are opening to that constituency.

"His real problem I think is this. Senators are going to have a hard time. First term Senators, we already tried a first-term Senator. And that's why when Scott Walker says a proven track record, what Walker has -- he doesn't have a fluency on issues that a Cruz does and he's made a lot of stumbles thus far. Cruz talks about you have to walk the walk rather than just talk the talk. You have to have done something but that's not his record in the Senate. He's a good rhetorician, but when Walker says I ran the state, I took on the unions, I took on liberals and I won I think it is going to be a strong argument," Krauthammer said.