Nixon Defamed?

In Thomas Fleming’s “Eight Days with Harry Truman” (July/August) he relates that President Truman said of President Nixon, “He called me a Communist, you know.” Mr. Fleming writes on, “I said I knew that.” Truman was eighty-six at the time, so one can hardly hold him to a strict standard of accuracy. And perhaps Mr. Fleming was simply humoring Truman by not disputing the claim then. But would Mr. Fleming now kindly tell us on what date, before what audience, Nixon called Truman a Communist?