Standing in his way is a bow-tie-wearing physicist who loves classical Japanese poetry and is heir to a Berkshire Hathaway fortune. Charles Munger Jr., son of the late billionaire investor Charles Munger, has already poured $30 million into opposing the California governor’s efforts to revamp the state’s congressional districts in favor of Democrats. Munger is a Republican, but his crusade is far more about fighting gerrymandering than party preferences.