Munger, a multi-millionaire good-government philanthropist who backed 2008 and 2010 initiatives that established California’s independent redistricting process, has contributed $32 million this year to defend that system. His committee, Protect Voters First, was created soon after Newsom moved to put Prop 50 on the ballot.

The Justice Department will send election monitors to Los Angeles, Orange, Riverside, Kern and Fresno counties.