While Sarah Palin has energized the campaign of John McCain, political scientist Andrew Dowdle of the University of Arkansas suggests that the effect of her celebrity has peaked. Dowdle is an assistant professor of political science in the J. William Fulbright College of Arts and Sciences at the University of Arkansas and editor of The American Review of Politics. â’Historically, the vice presidential candidate hasnâ’t played a role at all in how an election plays out. No matter how much attention the VP gets during the campaign, people vote for the president. â’Sarah Palin has certainly made the race...