Republican Sen. Roy McDonald won't pursue an independent run after losing a GOP primary because of opposition to his support for gay marriage in New York.
Senate Majority Leader Dean Skelos says Thursday that McDonald has told him he won't pursue a third-party run.
McDonald lost the primary to Kathleen Marchione in a Sept. 13 vote that was so close it wasn't decided until Wednesday in a count of absentee ballots.
Skelos praised McDonald's decision not to campaign as a good choice for his party and Senate district.
McDonald has represented the 43rd district since 2008.
Democratic Gov. Andrew Cuomo pledged Wednesday to support McDonald, who cast a difficult vote in June 2011 to help pass Cuomo's bill to legalize same-sex marriage.