Theodore Chaikin “Ted” Sorensen is a writer, best known as President John F. Kennedy’s Special Counsel & Adviser, legendary speechwriter, and “alter-ego.” President Kennedy once called him his “intellectual blood bank.”
Sorensen joined John Kennedy shortly after JFK was sworn in as Senator in 1953. Over the next decade, he became Kennedy’s closest adviser. Sorensen also had an important role in researching and drafting Kennedy’s Pulitzer Prize-winning book Profiles in Courage.
After Kennedy was assassinated, he helped the new president, Lyndon B. Johnson, for several months, as LBJ was to recall in his White House memoirs. Sorensen left the White House to write Kennedy, a biography published in 1965. Providing an insight into the Kennedy White House, it became an international bestseller.
Sorensen later joined the law firm, Paul, Weiss, Rifkind, Wharton & Garrison LLP, while still staying involved in politics. He played an important role in a number of campaigns, including the Robert F. Kennedy presidential campaign in 1968. Over the past four decades, Sorensen has led a prominent career as an international lawyer, advising governments around the world, as well as major international corporations.
Source - Wikipedia
http://en.wikipedia.org/wiki/Ted_Sorenson