Albany, N.Y. - New York's Senate Republican leader says he believes Westchester County Executive Rob Astorino will run for governor and that incumbent Gov. Andrew Cuomo is vulnerable.

Sen. Dean Skelos says he believes Astorino will be their party's candidate and he appears to also have Conservative Party support.

The Long Island Republican also says Monday he isn't sure businessman and celebrity Donald Trump is serious about running, as Trump has suggested.

Running statewide for governor is "a huge task" and between Trump's television shows and other interests, he may be unable to devote the time.

Asked whether he thinks incumbent Democrat Cuomo is vulnerable, Skelos says that's true of everybody in politics and government.

The "Astorino for Governor" campaign committee was registered with the state Board of Elections last week.