"Presidential candidates make the most of celebrity supporters, showing them off in television ads and propping them on podiums to stand and wave. No doubt Mike Huckabee’s aborted campaign for the Republican nomination got some sort of bump from those commercials of him with Chuck Norris, right?
"Or maybe not. Politicians and pundits routinely claim that celebrity endorsements have little sway on voters, and two economists set out recently to test the premise. What they found was that at least one celebrity does hold influence in the voting booth: Oprah Winfrey."
FOR FULL ARTICLE:http://www.nytimes.com/2008/08/11/business/media/11oprah.html?ex=1234065600&en=24d0b474c6a7978a&ei=5087&WT.mc_id=BU-D-I-NYT-MOD-MOD-M056-ROS-0808-HDR&WT.mc_ev=click&mkt=BU-D-I-NYT-MODMOD-M056-ROS-0808-HDR