HOUSTON (AP) — Jack Brooks hounded government bureaucrats, drafted President Richard Nixon’s articles of impeachment and supported civil rights bills in a congressional career spanning 42 years. But for most of the country the Southeast Texas politician is frozen in a photograph, standing over the left shoulder of Jacqueline Kennedy as Lyndon B. Johnson is sworn in as president.

Brooks, who died Tuesday at age 89, was in the Dallas motorcade on Nov. 22, 1963, when President John F. Kennedy was assassinated. Hours later he stood behind the grief-stricken widow in the cabin of Air Force One as Johnson took the oath of office.