Contact: Mark Church, Chief Elections Officer & Assessor-County Clerk-RecorderAlternate: Jim Irizarry, Assistant Chief Elections Officer & Assessor-County Clerk-Recorder (Redwood City, CA) Mark Church, San Mateo County’s Chief Elections Officer & Assessor-County Clerk-Recorder, announced that the voting period for the March 3, 2020 Presidential Primary Election will begin February 3, 2020.