Jeffrey Klein is a former Democratic member of the New York State Senate, representing District 34. He was defeated in his bid for re-election as an Independence Party candidate in the general election on November 6, 2018, after losing the Democratic primary on September 13, 2018. He was first elected to the chamber in 2004.
Klein served as Independent Democratic Conference (IDC) leader from 2011 until April 2018 when the IDC dissolved. Klein served as the Independent Democratic Caucus leader in the majority coalition along with Republican leaders Dean Skelos and John Flanagan. Klein sometimes served as the Temporary President of the Senate.
Klein and five other former IDC members lost to progressive challengers in the September 13 Democratic primaries.
Klein was a member of the New York State Committee from 1988 to 1990. He then served in the New York State Assembly from 1994 to 2004. He was Senate Deputy Minority Leader from 2007 to 2008. He has also served as Democratic District Leader and Deputy Majority Leader for Legislative Operations.
Klein earned his B.A. from Queens College in 1983, his MPA from the School of International and Public Affairs from Columbia University in 1985, and his J.D. from the City University of New York Law School in 1993.
His professional experience includes working in lead paint litigation for Trolman & Glaser Firm, serving as Chief of Staff/Executive Assistant for Congressman James Scheuer from 1985 to 1988 and working as District Administrator from 1988 to 1992. He is currently a Partner in Klein, Calderoni & Santucci, Limited Liability Partnership.