and was a major adviser of Robert F. Kennedy in Kennedy's 1968 presidential campaign. After the death of Robert Kennedy he wrote a book entitled The Kennedy Legacy: A Peaceful Revolution For The Seventies (1969) about the political ideals of the Kennedy brothers that could be applied to the Democratic Party in particular and to America and American society in general going forward. During the next four decades, Sorensen had a career as an international lawyer, advising governments around the world, as well as major international corporations. During the 1970 United States Senate election in New York, Sorensen was the Democratic party's designee for the Democratic nomination for U.S. senator from New York. He was challenged in the primary election by Richard Ottinger, Paul O'Dwyer, and Max McCarthy, and polled third. The winning nominee Ottinger was subsequently defeated by James L. Buckley in the general election. In 1973, Sorensen wrote a contingency plan for the presidential transition of the Democratic Speaker of the House Carl Albert. Albert was third in the United States presidential line of succession under the Twenty-fifth Amendment in the event that Richard Nixon was impeached or forced to resign by the Watergate scandal, and if the nomination of Gerald Ford to replace Spiro Agnew as Vice President failed. The memorandum included advice on drafting an inaugural address and appointing a Cabinet. It recommended the appointment of a Republican Vice President, but urged Albert to remain in office as President until the end of the term. The memorandum was discarded because Ford was nominated and because Albert personally did not wish to be President. During 1977, Jimmy Carter nominated Sorensen as Director of Central Intelligence (CIA), but the nomination was withdrawn before a Senate vote. Sorensen's help with explaining Ted Kennedy's Chappaquiddick incident and Sorensen's mishandling of classified information were cited as factors of Senate opposition to his nomination as CIA director. Sorensen in his autobiography attributed the loss of Senate approval for his nomination for CIA director to his conscientious objector status as a youth, his two failed marriages, and his writing an affidavit in defense of releasing Daniel Ellsberg's Pentagon Papers. Sorensen was the national co-chairman for Gary Hart for the 1984 Democratic Party presidential primaries and made several appearances on his behalf. In addition to his successful career as a lawyer, Sorensen was also a frequent spokesman for liberal ideals and ideas, writing opinion-editorials