"On Sunday, speaking on condition of standard diplomatic anonymity, State Department officials said they were untroubled and even optimistic about the Brotherhood’s reversal of its pledge not to seek the presidency. The Brotherhood’s candidate, Khairat el-Shater, a millionaire businessman considered the most formative influence on the group’s policies, is well known to both American diplomats and their contacts in the Egyptian military. Though in and out of prison, he was the Brotherhood’s main point of contact with Mr. Mubarak’s security services and is now its main conduit for talks with the council of generals who took power at his ouster. Mr. Shater has met with almost all the senior State Department officials and American lawmakers visiting Cairo. He is in regular contact with the American ambassador, Anne Patterson, as well as the executives of many American companies here, and United States officials have praised his moderation as well as his intelligence and effectiveness."