sentences:  Rusk suggested that Khánh should occupy the head of state as well as the chairmanship of the MRC, and on February 2, Johnson sent him a personal and supportive handwritten note, having been reported to be uneasy at first.However, Johnson also sent McNamara to Saigon to warn the officers that continued power struggles could make the US Congress hostile to further requests for funding.According to Blair, Johnson had no "inside knowledge of its preparation and mechanics".