I think rather than be wishy washy on a guy like Mourdock (and other tea party prospects like Cruz) we need to get behind these guys fully. I think the tea partiers are a bit novice in their political skills and they seem to be bullied by the media and/or the establishment. Mourdock talked about being ideologically pure and against compromising with Democrats (which won him the primary over the hack Lugar) and now that he feels pressure that he needs to win over the center he might make errant comments like the one person earlier posted about working with the center. Indiana is a red state, he doesn't need to run a Scott Brown campaign here. If libertarian republicans were to fully support him, I would think he'd realize he got elected once with us, and he should stick to his guns. Donnely is like Dick Lugar 2.0 tilted even more to the left.
In fact, I just researched Donnelly a bit more, and he is officially Dick Lugar who doesn't want to repeal Obamacare. That's literally the only difference. If Mourdock came out for auditing the fed (which he might support), and a more non-interventionist foreign policy he could probably win over the anti-war crowd.
Second Edit: This is from Mourdock's site on defense:
Supporting a Strong National Defense and our Military Veterans
Richard supports our men and women in uniform and believes that a strong national defense is the best strategy to deter aggression. Richard believes that military force should be used only when a vital national interest is at stake and that any U.S. mission should come with clearly defined goals and objectives. Richard supports our Veterans and Wounded Warriors and will work to ensure that our Nation makes good on its commitment to those who have risked everything in the service of their Country.
We really should throw our support behind him and try to get him to come out against NDAA/drones/Patriot Act and I think we have ourselves another Rand. The rest of his issues talk about eliminating the IRS and returning to sound money. He's talked a good game, and now we have to get him to play a good game by showing that we support him. Don't let the establishment etch him as a moderate.