Fresno City Councilmember Mike Karbassi and Kerman Mayor Maria Pacheco were strong frontrunners to nail down spots in a November runoff based on early returns Tuesday night for the District 1 seat on the Fresno County Board of Supervisors. With 14.13% of the vote counted, Karbassi led with 35.81% while Maria Pacheco had 26.53% in a field of six candidates battling to succeed Brian Pacheco. To win a race outright in the primary, a candidate must …