WHITE PLAINS - Westchester County Executive Rob Astorino (R) announced Tuesday that Chemung County Sheriff Christopher Moss is his pick to run for lieutenant governor.

The 46-year-old Moss joined the sheriff's office in 1989 and has been sheriff since 2006. He is an outspoken critic of the tougher gun laws championed last year by Gov. Andrew Cuomo (D). Moss is African-American and leads the state's sheriffs association.

Republicans are gathering this week in Westchester County to nominate candidates for the fall elections.

Cuomo is expected to announce his running mate soon. Lt. Gov. Robert Duffy decided not to run.

AP wire services contributed to this report.