This critical assessment of the Mexican-American war and its divisive role in U.S. politics also evaluates its impact on the careers of James Polk, Henry Clay, and Abraham Lincoln and how it set the stage for the American Civil War.

Originally published by Alfred A. Knopf in 2012.

pt. 1. Polk's dream, 1844-45. Valentine's Day ; "Who is James K. Polk?" ; The upset -- pt. 2. Mr. and Mrs. Polk's war, 1845-46. Speaking cannon fire ; "The mischief is done" -- pt. 3. The crucible of conscience, 1846-47. A tame, spiritless fellow ; Buena Vista ; Inscrutable providence ; Needless, wicked, and wrong ; War measures ; Duty and justice -- pt. 4. Truth and consequences, 1848. To conquer a peace ; A clear conscience -- Epilogue: Lineage.