My opinion? The Republican party has a wide variety of views amongst its members on things like the environment, abortion, etc. I recognize we can't get a 100% conservative Senator elected in liberal or liberal leaning states. So, we conservatives put up with them. But, my thought is, if you aren't a fiscal conservative, get the heck out. You're not a Republican. In my mind, you have to be a fiscal con to call yourself a Republican. That is the backbone of the whole Republican philosophy.
So my thought is, come primary season, we need to find fiscal cons to run against those three and throw money at them. It's past time to kick those three out.