Basically we need to have a conservative primary before the Republican primary...
Best idea I've seen in a long while!! We conservatives and tea party patriots should do exactly that!!
That might work. But maybe, we need to just do away with single party primaries. Have a free for all, with the top two or three vote getters going on to the General Election. Somewhat analogous to the Constitution's provisions for the case where no one gets a majority of the electoral vote.
The parties have entirely too much control over the entire process. The Constitution doesn't anticipate parties, maybe our elections under it, and the rules for Congressional operations shouldn't either.
Parties exist to elect candidates and then "share the wealth". Well, we are rapidly running out of wealth to share.
I'm well aware of the downsides to that approach, but keeping on doing what isn't working, and is actually hurting, doesn't seem an indication of intelligence either.