[field name=iframe] State Rep. Ruben Gallego, an Arizona Democrat, said he's unsure how much money he'll need to succeed retiring Rep. Ed Pastor, D-Ariz., in the 7th District, according to an interview with CQ Roll Call. "It's hard to say," Gallego said. "It's not going to be a cheap race. This is a five month race." The Democrat is running in a crowded Aug. 26 primary in this Hispanic-majority district based in Phoenix . The Democratic nominee is expected to win the general election in this strong Democratic district. Gallego's most formidable opponent is former Maricopa County Board Supervisor Mary Rose Wilcox, a longtime local official backed by Pastor and EMILY's List. (more…)