Andrew Jackson
Governor of New York
Before becoming president, Jimmy Carter represented his home state of Georgia. He was a member of the Georgia Senate from 1963 until 1967, and held office as the Governor of Georgia from 1971 until 1975.
He was a lawyer in Virginia.John Tyler was the Vice President under President William Henry Harrison from March 4, 1841 to April 4, 1841 before he succeded Harrison after his death, to become the 10th President of the United States.
President Ronald Reagan was a radio sport announcer and actor before becoming president. He was an announcer for Chicago Cubs baseball games in Des Moines in the 1930s.
Ronald Reagan
Ronald Reagan was the movie star and Bonzo was one of his pictures.
You are probably asking about Ronald Reagan, and in fairness, he was a radio star and a TV and movie actor long before he ever became a politician. It is also worth noting that other presidents have made occasional guest appearances on TV or in movies; but Reagan is probably the one who became well-known for his professional acting career. As a result, he was already popular when he entered politics.
kennedy
I have read somewhere that Obama's dream before becoming President was to be a bank manager.
Truman
George W. Bush, Jr. was Governor of Texas before becoming President of the United States.
Jimmy Carter was in the peanut business, before becoming President.
President Lyndon B. Johnson served the longest in the United States Senate before becoming president. He was in the senate for twelve years.
before
Lincoln's job before becoming president was as a lawyer. But he held many jobs prior to studying and becoming a lawyer. Two of them are as a clerk and surveyor.
Ronald Reagan