A 24-year-old staffer on former Gov. Tim Pawlenty's presidential exploratory committee has resigned in the wake of his arrest earlier this month in Iowa for public intoxication and trespassing. Benjamin Foster, a 2009 University of Alabama graduate, had been placed on a two-week unpaid suspension by the exploratory committee. A spokesman for the committee confirmed Tuesday that he has since resigned. Foster had been arrested in Ankeny, Iowa, after a 15-year-old girl found him drunk and trying to enter the family's back door. Foster was allegedly intoxicated and had returned home to the wrong house. The girl's father held him a gunpoint. The Associated Press reports that he has pleaded not guilty in the case.