A suspect has been arrested in connection with three shootings targeting the Democratic Party campaign office near Phoenix in Arizona, according to local officials. The suspect is also linked to incidents involving political signs and white powder. A brief statement from the Tempe Police Department confirmed that a suspect was arrested on Tuesday in connection with the shootings, in which no one was injured. The suspect’s name and additional information will be released on Wednesday. The arrest came just hours after the suspect was detained for putting up political signs with suspicious bags o…