He became a partner at Mayer Brown in 1989 and was a "nonresident senior fellow" at the Brookings Institution.[8][9] He is the author of Matters of Principle, a non-fiction book about the Robert Bork Supreme Court nomination, for which he was awarded the American Bar Association's Silver Gavel award. He has been selected by his peers several times for inclusion in "Best Lawyers in America".[10]
In 2009 Gitenstein was nominated for the post of U.S. Ambassador to Romania.[12] The Romanian English-language news daily Nine O'Clock selected Ambassador Gitenstein as "The Foreign Diplomat of the Year for 2011."[13] Gitenstein worked to strengthen relations with Romania on a variety of issues, focusing on fighting corruption, improving transparency, and strengthening the rule of law.[14][15][16] He actively promoted deeper development of Romania's equity markets, as well as a fair and transparent business environment for all investors.[17][18] He also encouraged greater private sector involvement in state-owned enterprises (SOEs), including the introduction of a corporate governance code for SOEs.[19] As a means of promoting social change, Gitenstein worked with TechSoup Romania to establish Restart Romania, a project designed to demonstrate the power of the internet and social media to find solutions to social justice problems, support transparency of public institutions, and promote grass roots efforts to fight corruption.[20][21] The U.S.–Romanian Ballistic Missile Defense Agreement was signed and negotiated during Gitenstein's tenure in Bucharest.[22] Gitenstein travelled to Afghanistan three times to visit U.S. and Romanian troops.[23][24] He was a human rights advocate for the country's minority Roma population.[25][26] He was awarded the Star of Romania, the country's highest civilian honor, in 2012.
Biden administration
On September 5, 2020, Gitenstein was announced to be a member of the advisory council of the Biden-Harris Transition Team.[27][28]
As Ambassador, Gitenstein has highlighted the critical role of free media as a safeguard against democratic regression, advocating for increased action and financial support in this domain. He established innovative frameworks to unite civil society leaders, financial experts, philanthropists, and successful media organizations, formulating policy recommendations for the European Commission to utilize blended-finance equity investments to strengthen independent and pluralistic media ecosystems in the region. Acknowledging that international capital and EU policy initiatives alone are insufficient to sustain pluralistic media markets in Central and Eastern Europe, Gitenstein organized media investor forums within local markets to foster domestic engagement, expand financing mechanisms, and enhance trust and accountability in local media institutions.[34][35]
Personal life
He is married to Elizabeth (Libby) Gitenstein and has three children and seven grandchildren.[36]