The Americans' assessments of Diệm were varied. Some were unimpressed with him, some admired him. Diệm gained favor with some high-ranking officials, such as Supreme Court Justice William O. Douglas, Roman Catholic cardinal Francis Spellman, Representative Mike Mansfield of Montana, and Representative John F. Kennedy of Massachusetts along with numerous journalists, academics, and the former director of the Office of Strategic Services William J. Donovan. Although he did not succeed in winning official support from the US, his personal interactions with American political leaders promised the prospect of gaining more support in the future. Mansfield remembered after the luncheon with Diệm held on 8 May 1953, he felt that "if anyone could hold South Vietnam, it was somebody like Ngô Đình Diệm".