Can Oprah get you to vote for Barack Obama?

Now I know we still have a year to go before the 2008 Presidential Election and there are still a good number of undecided voters out there. My question to them would be, "Will Oprah's endorsement and appearances for Barack Obama have any affect on whom you will vote for? Give your answer from the choices below here: http://www.letstalkhonestly.com/LTHQOTW.html
No. my mind is pretty much made up.
I'm already a Barack Obama supporter.
It may lead me to take a harder look at Barack Obama.
No celebrity endorsements will factor into my choice at all.