Arts advocates are rallying at the San Diego Unified offices today to protest proposed cuts to visual and performing arts programs in the school district, which faces an $180 million deficit. Eliminating the arts department, which provides training, supplies and itinerant teachers for art, music, dance and drama, is estimated to save $3.5 million. The rally starts at 4:15 p.m. at 4100 Normal Street and will include student performances.