A Wicked War presents the definitive history of the 1846 war between the United States and Mexico - a conflict that turned America into a continental power. Amy Greenberg describes the battles between American and Mexican armies, but also delineates the political battles between Democrats and Whigs - the former led by the ruthless Polk, the latter by the charismatic Henry Clay and a young representative from Illinois named Abraham Lincoln. Greenberg brilliantly recounts this key chapter in the creation of the United States with authority and narrative flair.