Wilmot Proviso
8 Aug 1846
Causes: Whigs in the North did not support the Mexican-American War because they saw it as Southern Democrats trying to expand slavery and their power in US Senate. Wilmot said that if the US wanted funding from the Whigs, there would be no slavery allowed in the land won from Mexico.
People: David Wilmot
Effects: The Proviso did not pass in the House, but it nevertheless further divided the nation into Whigs and Democrats, each fighting for more power over the other.