re: The GOP voting base are just to blame as the RINO politicians

The incumbency is hard to break up when voters don't get involved enough on the issues and their voting records. So yes it is the voters fault in that regard. This is another good argument for term limits.

I bet 35-40% of republicans in Texas don't like Cornyn at all and want him gone because they pay attention. But the other 60-65% here him speak on certain topics and think he is a great republican because they don't follow his track record. So nobody can gain traction in the primaries.