john michael "mick" mulvaney (born july 21, 1967) is an american politician. mulvaney was the united states special envoy for northern ireland from 2020 to 2021. he was the 44th director of the office of management and budget from february 16, 2017 to march 2020. he was the u.s. representative for from 2011 through 2017. he is a member of the republican party. mulvaney served as a member of the south carolina senate, representing the 16th district (lancaster and york counties), from 2009 to 2011.