There are plenty of people within the Republican Party who want to push it further and further to the right. But give some of the people who run it credit: They're smart enough to draw the line.
Some RNC members recently introduced what's come to be known as a "purity" resolution; if passed, it would institute a test any candidate would have to pass in order to get the national party's support. The resolution lists ten conservative values, and requires candidates to agree with at least eight of them.
It now seems likely, though, that this is one test no one will ever have to take. The RNC's holding meetings in Hawaii this week, and on Wednesday, a committee of state party chairs voted unanimously against the resolution. That doesn't kill it outright, but it does indicate that it can't pass when it comes to a binding vote.