Campaign signs are everywhere this time of year -- in neighbors' yards, on the drive to work and maybe even in the windows of local businesses.
Do they work? Or are campaign signs a waste of ink and paper? In campaigns for president or U.S. Senate, signs and bumper stickers won't make much of a difference.
But research by political scientists Cindy Kam and Elizabeth Zechmeister suggests that signs might positively influence voters in races where little to no information exists on the candidates themselves -- like judges. So how does it work? And do certain kinds of signs work better than others?
GUEST
Cindy Kam, political science professor, Vanderbilt University
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