LOS ANGELES (CBSLA.com) — Labor union members claim Proposition 32, which would limit how unions raise money for California political campaigns, would rob them of their political power. A clause in the proposition on the November ballot would prohibit unions from payroll-deducted funds for political purposes. Jack Pitney, a political science professor at Claremont McKenna College, said the provision weakens the ability of unions to participate in elections. “They could still try to get voluntary donations from members, but without that steady stream of income via the payroll deductions, it would be a lot harder for them,” he said. Maria...