Despite Gov. Brian Sandoval's belief that marriage should be between a man and a woman, the Senate Judiciary Committee is poised Thursday to approve a constitutional amendment on gay marriage. Committee Chairman Sen. Tick Segerblom, D-Las Vegas, says there are enough votes for Senate Joint Resolution 13 to clear both the committee and the full Senate. Some Republicans are supporting the measure, he said. The governor, in a posted interview with a Spanish-language reporter, said he backed Nevada’s domestic partner law but opposes gay marriage. The interview was outlined on the website of political journalist Jon Ralston.