The first returns in Tuesday’s special election for county supervisor show Chula Vista Mayor John McCann and Imperial Beach Mayor Paloma Aguirre in the lead to advance to a runoff later this year.

South Bay residents have one day left to vote in the District One supervisorial race. The representative chosen in the primary special election would replace the seat left behind by former supervisor Nora Vargas.

SAN DIEGO — Thirteen voting centers are open for the final day of voting to fill the San Diego County Board of Supervisors seat left vacant by former Chair Nora Vargas, who stepped down despite winning reelection in November. Those locations, which will be open Tuesday for in-person voting from 7:00 a.m. to 8:00 p.m., are: