Having candidates with all sorts of different views is simply part of our process. Right now there is a very large voting block that shares the views expounded by those candidates. It's nothing more than democracy at work in that regard. Candidates telling voters what they want to here is as old as voting itself. Personally I'm hoping the more moderate cream will rise to the top, but right now the squeaky wheels are getting greased (sorry for the bad double cliche').
More curious to me at this stage is that there are very few rumors of a challenger on the Democratic side. It seems the DNC and the voters are going to limit themselves to the increasingly unpopular incumbent. I'm just surprised that some of the more upwardly mobile moderate Dems haven't started making a little more noise.