I've said before that I don't care about a politician changing their position on an issue but that it disturbs me greatly when they change positions on ethics or character.
I would define something like beliefs about what experience is and what qualifies a person to be trusted to make wise decisions on national matters to be more of the latter.
The best, and funniest, political commentary is when a politician's own words are used against them. This is one of the reasons that I found the Jon Stewart piece on The Daily Show so funny. The one where he caught Karl Rove dissing Virginia Governor Tim Kaine and compared it to Rove's endorsement of Sarah Palin.
I find it less funny when it's the actual Presidential candidate. Especially when he is selling himself as being honest, a maverick and an agent of change.
This is video from a Republican debate in October 2007. John McCain is talking about Rudy Guiliani and Mitt Romney in this clip. Please remember while watching this that New York City has a population of 8 million. A million people for every 900 that lived in Wasilla while Sarah Palin was mayor. Mitt Romney is the former governor of Massachusetts and served a full four year term. The Boston metropolitan area, just part of the state, has a population of 4.5 million compared to Alaska's 670,000 and Palin has served for less than half a term.