James K. Polk

Biography

James K. Polk was a one-term Democratic president from Tennessee who entered office in 1845 with a sweeping expansionist agenda — the acquisition of Texas, Oregon, and California — and the focused determination to execute it. A protégé of Andrew Jackson, Polk was methodical, humorless, and intensely hardworking, logging fourteen-hour days throughout his presidency without a single vacation. He deliberately engineered the conditions that precipitated the war with Mexico: annexing Texas and ordering General Taylor to advance to the Rio Grande, a river Mexico regarded as deep inside Mexican territory. When Mexican forces crossed the river and clashed with American troops, Polk went to Congress with the famous message that 'American blood has been shed on American soil' and secured a declaration of war within days. Polk consistently micromanaged his generals — sidelining Taylor after Monterrey and intriguing against Scott after Mexico City — and jealously guarded the political fruits of the war, which he feared would benefit Whig military heroes rather than his own party. He kept every campaign promise and chose not to run for re-election in 1848. He died just three months after leaving office, his health destroyed by four relentless years in the White House.