I hope not. Thune is a generic neocon Bush-clone.
That may be true, but Bush did win 2 terms, so some part of the country finds that appealing.
McCain was sort of a moving target, his supposed base of voters had no idea what he was for or wanted to do, highly unpredictable. Most independents were against the Iraq War, so McCain lost that vote too.
Bush barely won his 2 terms and if he had been able to run for a third term in 2008, it would have been a massive landslide defeat.
America has rejected Bush and the will reject Thune.