Earl Warren worked in the United States.
Earl Warren . He is best known for the liberal decisions of the so-called Warren Court , which outlawed segregation in public schools and transformed many areas of American law , especially regarding the rights of the accused , ending public school-sponsored prayers , and requiring `` one man -- one vote '' rules of apportionment of election districts . Warren is the only person elected to three consecutive terms as Governor of California , and with those three elected terms he is second only to Jerry Brown for total gubernatorial wins in California . Before holding these positions , he was the District Attorney for Alameda County , California , and the Attorney General of California .