Really? You mean the people who ruined the GOP's image in the early Bush years with their prolific spending and lack of any resemblance of fiscal restraint? There's a reason that Republicans have a far less favorable opinion of their own party than Democrats do. People respond well to politicians making responsible choices--take a look at McDonnell and Christie in Virginia and New Jersey to see what nominating stalwart Conservatives did to the GOP. These people are making the spending cuts that moderates considered to be "too extreme" or "too controversial" and are highly popular in their states for doing so.
So if you think the GOP is going to die by daring embracing Conservatism again, I have to one thing to say. People support elected officials to make actual policy changes--not to get re-elected. If the getting tangible fiscal restraint means no return to the "Permanent Republican Majority" of the Bush Years, that's fine by me.
You're talking about mismanagement. The Bush Administration and the Republican Congress was very conservative, nothing about them was moderate.
When you have people running around talking about privatizing Social Security, dismantling Medicare, being extremely radical on social issues and lacking dignity and class while doing, that is not mainstream policy that people embrace. I don't really care that they choose to go far-right, it isn't my party, I'm just pointing out facts.