Most U.S. liberals think of Niebuhr as a solid socialist who has some obscure connection with Union Theological Seminary that does not interfere with his political work. Unlike most clergymen in politics, Dr. Niebuhr is a pragmatist. Says James Loeb, secretary of Americans for Democratic Action: "Most so-called liberals are idealists. They let their hearts run away with their heads. Niebuhr never does. For example, he has always been the leading liberal opponent of pacifism. In that period before we got into the war when pacifism was popular, he held out against it steadfastly. He is also an opponent of Marxism.