If you turn on your TV or radio, you're bound to hear a campaign ad. Political action committees are funneling millions into flooding the airwaves, firing at Harry Reid or Sharron Angle in one of the most hotly contested races of the season. But what's the effect of all these ads? Do voters choose one name if they hear it enough? Or do they change the channel? Do accusations of race-baiting or talk of taxees have any effect? What's the psychology behind campaign ads, and what strategy are political teams using this election? Experts hammer out the ads and how they're impacting us. Can campaign ads change your vote?