[5] In his 2008 autobiography Counselor: A Life at the Edge of History, Sorensen said he wrote "a first draft of most of the chapters" of John F. Kennedy's 1956 book Profiles in Courage and "helped choose the words of many of its sentences.

Although Sorensen played an important part in the composition of the inaugural address, he has stated that "the speech and its famous turn of phrase that everyone remembers was written by Kennedy himself.

"[8][9] In his 2008 memoir, Counselor: A Life at the Edge of History, Sorensen claimed, "The truth is that I simply don't remember where the line came from.

During the Cuban Missile Crisis, Sorensen served as a member of ExComm and was named by Secretary of Defense Robert S. McNamara as one of the "true inner circle" members who advised the president, the others being Attorney General Robert F. Kennedy, National Security Adviser McGeorge Bundy, Secretary of State Dean Rusk, General Maxwell D. Taylor (chairman of the Joint Chiefs), former ambassador to the USSR Llewellyn Thompson, and McNamara himself.

Sorensen later joined the U.S. law firm of Paul, Weiss, Rifkind, Wharton & Garrison LLP, where he was of counsel, while still staying involved in politics.

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.

[15] Sorensen in his autobiography attributed the loss of Senate support 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.

[16] Sorensen was the national co-chairman for Gary Hart for the 1984 Democratic Party presidential primaries and made several appearances on his behalf.

[17] In addition to his successful career as a lawyer, Sorensen was also a frequent spokesman for liberal ideals and ideas, writing opinion-editorials and delivering speeches concerning domestic and international subjects.

Sorensen also attended meetings of the Judson Welliver Society, a bipartisan social club composed of former presidential speechwriters.

During 2007, a model Democratic presidential nomination acceptance speech written by Sorensen was published in the Washington Monthly.

[18] On March 9, 2007, he spoke at an event with then-senator Barack Obama at New York City's Grand Hyatt Hotel and officially endorsed him in the presidential election in 2008.

In his book Let The Word Go Forth, Sorensen selects from more than 110 speeches and writings that indicate the importance of historical insights in Kennedy's thoughts and actions.

As a speechwriter and adviser to President Kennedy, he helped craft messages and policies, and later gave us a window into the people and events that made history.

"[23] On October 31, 2010, Sorensen died at the age of 82 at NewYork-Presbyterian Hospital in New York City of complications from a stroke he suffered the previous week.