The fire destroyed a portion of the building, located along Central Avenue. FOX 10's Brian Webb reports. FOX 10 has learned that Phoenix Fire officials are labeling a fire that damaged the Arizona Democratic Party headquarters in as an act of arson. The Phoenix Fire Department says the fire broke out at about 1 a.m. on July 24 near Central and Thomas. When firefighters arrived at the scene, they found heavy smoke inside the building and determined no one was inside. Firefighters were able to quickly extinguish the fire. Nobody was hurt, but the blaze destroyed the part of the building...…The fire destroyed a portion of the building, located along Central Avenue. FOX 10's Brian Webb reports. FOX 10 has learned that Phoenix Fire officials are labeling a fire that damaged the Arizona Democratic Party headquarters in as an act of arson. The Phoenix Fire Department says the fire broke out at about 1 a.m. on July 24 near Central and Thomas. When firefighters arrived at the scene, they found heavy smoke inside the building and determined no one was inside. Firefighters were able to quickly extinguish the fire. Nobody was hurt, but the blaze destroyed the part of the building...WW…