History on presidential candidates and running for two offices

Some history to go along with the new law that allows Cory Booker to run for president or vice president in 2020 while simultaneously seeking re-election to the United States Senate. No major party presidential nominee has ever run for two offices simultaneously. Franklin Roosevelt, Alfred Landon, and Adlai Stevenson declined to seek re-election as governor of their respective states when they ran for president. Bob Dole, whose Senate seat