Clarkstown Republican Chair Bob Axelrod notified committee members on Wednesday that town supervisor candidate Ralph Riverso, and town clerk candidate Kathleen Sheridan had withdrawn from their races. Riverso said his reason was "basically for my health." Sheridan of Valley Cottage was dropping out of the clerk's race because of "serious personal difficulties" according to Axelrod.

When asked why he had changed his mind about seeking the town supervisor post, Riverso of Valley Cottage said the petition signature gathering process had drained him. Riverso, who said he has a heart condition, said while he had the desire to run, "I don't have the ability to do it physically."

Both candidates had submitted their petitions for the Republican Party line to the county Board of Elections on Wednesday, July 10. It was the first run for elected office for both of them. Riverso works for the county Board of Elections and Sheridan is the daughter-in-law of former town clerk Patricia Sheridan.