Rep. Rod Blum’s district office was vandalized in Dubuque, Iowa, on Wednesday.

Cory W. Straub, 32, no permanent address, was arrested on a charge of third-degree criminal mischief, according to police.

Traffic cameras in the area captured a suspect walking with what appears to be a gallon paint can. The person opens the can and throws the white paint on the front doors of the building, which read “Congressman Rod Blum 1st District of Iowa.”

Local law enforcement responded to the Main Street location around 6 a.m. Blum denounced the act on Twitter Wednesday.