 Macmillan met Eisenhower privately on 25 September 1956 and convinced himself that the US would not oppose the invasion, despite the misgivings of the British Ambassador, Sir Roger Makins, who was also present.Macmillan failed to heed a warning from Secretary of State John Foster Dulles that whatever the British government did should wait until after the US presidential election on 6 November, and failed to report Dulles' remarks to Eden.The treasury was his portfolio, but he did not recognise the financial disaster that could result from US government actions.