The "Killian documents" were initially claimed by CBS to have come from the "personal files" of the late Lt. Col. Jerry B. Killian, Bush's squadron commander during Bush's Air National Guard service. They describe preferential treatment during Bush's service, including pressure on Killian to "sugar coat" an annual officer rating report for the then 1st Lt. Bush. CBS aired the story on September 8, 2004, amid more releases of Bush's official records by the Department of Defense, including one just the day before as the result of a FOIA lawsuit by the Associated Press.