Robert Schmuhl is the Walter Annenberg-Edmund Joyce Chair Emeritus in American Studies and Journalism at the University of Notre Dame. He has often written about the American presidency. His newest book is "Mr. Churchill in the White House: The Untold Story of a Prime Minister and Two Presidents." Prof. Schmuhl says both Roosevelt and Eisenhower eventually adjusted to the unconventional habits and hours of their White House guest, who not only proposed his visits but almost always, by accident or design, stayed longer than initially intended.

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