PHOENIX — A Phoenix resident is pleading for an alleged thief to stop after she says not only were her political yard signs stolen, but she was also left a hateful letter and dog poop in her yard.

Campaign signs can strengthen voters’ impressions of certain candidates. A study led by Cindy Kam, a professor at Vanderbilt University, tested this through a field experiment in Nashville in 2011.

Poppy and Tulip are supporting local business through their campaign, with signs from Andrew Fris at Fris Supply Shop, and have been in contact with several dogs in the area to build their cabinet ...

However, a campaign sign isn’t going to convince a committed voter to flip, Petersen said. The type of people most likely to be affected are those with the least interest or knowledge.