In his highly praised book Faith and the Presidency, Gary Scott Smith cast a revealing light on the role religion has played in presidential politics throughout our nation's history, offering comprehensive, even-handed examinations of the role of religion in the lives, politics, and policies of eleven presidents.

Now, in Religion in the Oval Office, Smith takes on eleven more of our nation's most interesting and influential chief executives: John Adams, James Madison, John Quincy Adams, Andrew Jackson, William McKinley, Herbert Hoover, Harry Truman, Richard Nixon, George...