Frenzel was chairman of the
Ripon Society, a Republican
think-tank, from the 1990s until March 2004. He was a Guest Scholar at the
Brookings Institution in Washington, D.C., starting January 1991, and was named director of the Brookings Governmental Affairs Institute on July 18, 1997.
President Bill Clinton appointed Frenzel (1993) to help sell the
North American Free Trade Agreement. In 2001, President
George W. Bush appointed him to a commission to study the
Social Security system, and, in 2002, to the Advisory Committee on Trade Policy and Negotiations (ACTPN), which he chairs. He was interviewed on
NPR's
All Things Considered, on December 20, 2004, as an advocate of President Bush's plan for
Social Security privatization. At the time of his death, he was chairman of the
Pew Commission on
Children in Foster Care, the vice chairman of the Eurasia Foundation, chairman of the
Japan-America Society of Washington, chairman of the U.S. Steering Committee of the Transatlantic Policy Network, co-chairman of the Center for Strategic Tax Reform, co-chairman of the Bretton Woods Committee, co-chairman of the Committee For A Responsible Federal Budget, a member of the executive committee of the Committee on U.S.-China Relations, and chairman of the executive committee of the International Tax and Investment Center. He was an alternate board member of the
Office of Congressional Ethics (as of 2011.) ==Policy opinions==