Actually, if she did, she would outdraw him at every stop. I don't think McCain would allow that. She may however, make a political commercial for him that would follow along the same lines as the issues outlined during the campaign.
I hope not. Sarah has said she is going to campaign for conservatives. McCain isn't a reliable conservative, and he has aligned with the liberals too often. 2010 should be the year when conservatives take the House and the Senate, and I believe the time will be ripe for this to happen.
Obama's poll numbers are plummeting. Since he is an avowed commie, he won't stop his agenda of destruction against Americans and America, which guarantees his poll numbers will go down even further, thus making the come back of conservatism even stronger. That's why I think it would be a waste of time campaigning for someone whose time has passed. Why not giving the chance to a real conservative with more passion and energy to do the right thing for America?