Why is she doing it?
She does more harm to her own political future hanging around with people like John McCain.
As a Conservative, you cannot be against illegal immigration, against cap and trade, against the closing of Gitmo and Mirandizing terrorists on the battlefield, and support the re-election of John McCain, by your support and praise of Sarah Palin. While he was against ObamaCare, John McCain was also at one time as recent at June of 2008 for the single-payer health care option, just like Hillary and Obama. He only voted against it because 7-in-10 Americans, not Conservatives, but Americans, opposed the legislation.
Further, he also opposed it because he's running for re-election. This is a typical tact of McCain when his Senate career is on the line.
He's running for re-election, she's not; he's everything that she's not.
This is about the future of America. John McCain would see to it that many of the remaining ideas on Obama's plate get implemented permanently.
Sarah cannot call herself an outsider after being governor of Alaska and then taking her place on the larger political stage by rubbing elbows with the political establishment of the Republican party.
I won't deny your right to worship at the Shrine of Sarah Palin, but this is about slaying the beast of Progressive Socialism. Not slowing it down or beating it back into a corner. Destroying Progressive Socialism once and for all.
Unfortunately Sarah must carry the weight of Juan McCain strung around her neck. She is between the proverbial rock and a hard spot. However I do believe the voters would punish disloyalty far more then loyalty to a bad conservative candidate. One can only hope that Az voters will solve her “McCain problem” for her. That would be nice.