Lyndon B. Johnson

Lyndon Baines Johnson, often referred to by his initials LBJ, was an American politician who served as the 36th President of the United States from 1963 to 1969, assuming the office after having served as the 37th Vice President of the United States from 1961 to 1963. A Democrat from Texas, he also served as a United States Representative and as the Majority Leader in the United States Senate. Johnson is one of only four people who have served in all four federal elected positions.