White House chief of staff Rahm Emanuel directed that the letters from the Cabinet secretaries be sent to [Governor] Brewer, according to two administration officials.”

Issa noted, “The fact that the letters were coordinated by you to maximize the level of intimidation is supported by the timing, structure, and content of each letter. Not only were the four letters all sent the day following Senator Kyl’s remarks, but they were also remarkably similar in tone and sentence structure.”