If Republican Sen. Bob Antonacci wins a judgeship and leaves the state Senate, Gov. Andrew Cuomo says he would call a special election to fill the central New York district.

“He has to win, then he has to resign and then clock starts running and then we look at it then,” Cuomo said.

Asked if the seat is vacant by Jan. 1, Cuomo said, “my inclination is to be able to call a special.”

Antonacci, a Republican elected last year to the district represented by Sen. John DeFrancisco in a narrow race against Democrat John Mannion.

If the state Senate special election is held on April 28, the same day as the presidential primary in New York, Democrats would potentially have an advantage given the expected heavy turnout that day. Cuomo has previously said he would call a special election for a western New York House district on that day.