This document provides biographical and career details about Lyndon B. Johnson, the 36th president of the United States. It notes that he was born in 1908 in Texas, served in the US House and Senate, was selected as John F. Kennedy's vice president in 1960, and became president in 1963 after JFK's assassination. As president, Johnson focused on domestic policies like the War on Poverty, Great Society programs, and expanding civil rights, healthcare, education and aid, as well as escalating US involvement in the Vietnam War and sending troops to the Dominican Republic.