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Eagleton Institute of Politics
Eagleton Institute of Politics


Eagleton Faculty/Staff Bios


Sidamon-Eristoff served as treasurer of the State of New Jersey under Governor Chris Christie from 2010 to 2015. The longest-serving treasurer in almost 40 years, Sidamon-Eristoff oversaw a major state department with almost 3,100 employees and more than 10 divisions. In addition to managing the development and execution of New Jersey’s $30 billion-plus annual budget, Sidamon-Eristoff played a major role in developing Governor Christie’s landmark 2001 pension and health benefits reforms, designed and implemented Governor Christie’s Performance Budgeting Initiative, and drafted Governor’s Christie’s $2.3 billion business tax reduction package of 2011.

From 2003 to 2006, Sidamon-Eristoff served as commissioner of the New York State Department of Taxation and Finance, the nation's second-largest state revenue administration. His public career to date also includes service as New York City commissioner of finance from 1999 to 2002. He was elected three times to the New York City Council as a Republican representing Manhattan, where he served from 1993 to 1999. He also served as a legislative counsel in the New York State Senate. Prior to entering public service, Sidamon-Eristoff was an associate at the law firm of Webster and Sheffield, specializing in federal and state income tax planning and compliance. Between the end of 2006 and the end of 2008, he performed a series of short-term consulting assignments for Chemonics International, an international development consulting firm, then executing a Business Climate Reform Project in the Republic of Georgia for the U.S. Agency for International Development.

Sidamon-Eristoff is a former member of the Internal Revenue Service's Electronic Tax Administration Advisory Committee and a former trustee of several non-profits including Scenic Hudson, the St. Bernard's School, and the New York League of Conservation Voters Education Fund. He is a member of the Association of the Bar of the City of New York. He is also a former President of the North Eastern States Tax Officials Association and board member of the Federation of Tax Administrators. A native of New York City, Sidamon-Eristoff earned a bachelor's degree, cum laude, in politics from Princeton University and a juris doctor degree cum laude from Georgetown University Law Center. He holds an Advanced Professional Certificate in Information Technology from New York University. Sidamon-Eristoff is married to the former Catherine E. Baxter; they currently reside in Highland Falls, NY and Princeton, NJ.