sentences:  Libby was also actively involved in the Bush administration's efforts to negotiate the Israeli–Palestinian "road map" for peace; for example, he participated in a series of meetings with Jewish leaders in early December 2002 and a meeting with two aides of then-Israeli Prime Minister Ariel Sharon in mid-April 2003, culminating in the Red Sea Summit on June 4, 2004.In their highly controversial and widely contested "Working Paper" entitled "The Israel Lobby and U.S. Foreign Policy", University of Chicago political science professor John J. Mearsheimer and academic dean of the John F. Kennedy School of Government at Harvard University Stephen M. Walt argue that Libby was among the Bush administration's most "fervently pro-Israel ... officials" (20).From January 2006 until March 7, 2007, the day after his conviction in "United States v. Libby", when he resigned, Libby served as a "senior adviser" at the Hudson Institute, focusing on "issues relating to the War on Terror and the future of Asia ... offer[ing] research guidance and ... advis[ing] the institute in strategic planning".