 Greco was approved by the Senate Judiciary Committee on 22 January 2015, confirmed by the Senate on 12 March 2015, and appointed by President Obama five days later on 17 March 2015.Greco became the first Latino to hold the post of US Marshal for the Southern District of New York.Before accepting the position of US Marshal, Michael Greco served as Lieutenant in the New York State Police, a position he held since 2007, and in which he served as the New York State Police’s inter-agency liaison in New York City.