IN THE MAIL: John O’Sullivan’s new book, The President, the Pope, and the Prime Minister: Three Who Changed the World.

We could use some similar leadership again. But who would fill those roles today? At dinner the other night, Jack Balkin expressed the thought that Hillary could be America’s Margaret Thatcher. I’m not sure about that, though I have in the past suggested that she might really turn out to be the most uncompromising wartime President in United States history.