John Quincy Adams and John Fitzgerald Kennedy.
Barack Obama
Former US President Ronald Reagan
Ted Kennedy was never president. He was a US senator from Massachusetts.
Most recently, he was the US Senator from Illinois.
Before he became president, he was a US Senator from Illinois.
The former US Senator and Secretary of War chosen as the provisional president of the Confederacy in 1861 was Jefferson Davis. He served as the President of the Confederate States of America throughout the American Civil War.
Jefferson Davis
Jefferson Davis
Hillary Clinton, the wife of former US President Bill Clinton, was elected to the Senate. She served as a senator from New York from 2001 to 2009.
A total of 9 US Presidents were both former US Representatives as well as former Senators. Three were elected Vice Presidents who succeeded to the Presidency, but only one (LBJ) was also elected President. Another (Andrew Johnson, became a Senator afterbeing President.James Garfield (20th President) was simultaneously a US representative, Senator-elect, and President-elect, having being appointed to a vacant US Senate seat in Ohio that he never occupied.Representatives/Senators who became PresidentAndrew Jackson - 7th President (representative and later senator from Tennessee)William H. Harrison - 9th President (representative and senator from Ohio)John Tyler * 10th President (representative and senator from Virginia who was elected Vice President and served 47 months after succeeding William Henry Harrison)Franklin Pierce - 14th President (representative and senator from New Hampshire)James Buchanan - 15th President (representative and senator from Pennsylvania)Andrew Johnson * 17th President (representative from Tennessee, elected to Senate after leaving the White House)John F. Kennedy - 35th President (representative and senator from Massachusetts)Lyndon B Johnson - 36th President (representative and senator from Texas)Richard Nixon - 37th President (representative and senator from California)
He was previously a US Senator for Massachusetts.
JFK was the senator for Massachuesetts from January 3, 1953 - December 22, 1960. Oddly enough he won the seat from Henry Cabot Lodge, Jr. who would later run as Nixon's vice president against JFK in the 1960 election.