Quote from AAAintheBeltway:
You're right, they won't change, but republicans have several factors working in their favor. Dems are defending more seats, and several are in states that even Romney carried. With no presidential election, turnout by low information voters should be less.
Republicans need to get back to basics. They can't afford to piss away any more senatorial elections, or let them be stolen right under their noses, eg Al Franken. They have to get serious about who gets nominated. No more Linda McMahons, even if she does have a lot of money. No more Todd Akins. At least work with the candidates individually and give them a script for dealing with gotcha questions on abortion, gay marriage, immigration, etc.