The race for District 4 supervisor is headed for a runoff between Dennis Rodoni and Dominic Grossi, who separated themselves from the crowded field of eight candidates in Tuesday’s primary election. Mr. Rodoni secured 30.67 percent of votes with 2,494, while Mr. Grossi notched 26.06 percent with 2,119 votes. Wendi Kallins came in third, with 16.8 percent, or 1,366 votes.
Tuesday’s primary captured a 41.38 percent voter turnout, which looks to be Marin’s lowest primary…