ALBANY, N.Y. (AP) - Democrats have prevailed in two special elections for the New York state Senate - but Republicans will retain control thanks to the support of a breakaway Democrat.

In Westchester County, Democratic Assemblywoman Shelley Mayer declared victory over Republican Julie Killian. With more than 80 percent of precincts reporting, Mayer had a 16 percentage point lead.

In the second contest, Democratic Assemblyman Luis Sepulveda easily dispatched Republican Patrick Delices in the Bronx.

The victories give Democrats a one-seat Senate majority. But Republicans will stay in charge through the end of the legislative session in June because of an alliance with Democratic Sen. Simcha Felder of Brooklyn. Felder has long sided with the GOP.

Democrats say they will seek to win a clear majority in November.