[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/POLITICS/10/24/polls.wear/art.obamashirt.ap.jpg caption="Wearing a T-shirt like this one may cause you a problem at the polls in November."]
ARLINGTON, Virginia (CNN) - Campaign paraphernalia is everywhere nowadays. People are sporting T-shirts, hats and pins touting their candidate of choice. But wearing your political allegiances can cause a problem at the polls.
In some states, what you wear to the voting booth could determine whether you are allowed to vote or be sent home to change.