

A Pennsylvania congressman whose single failed amendment lit the fuse on the national debate over slavery, helping to fracture the Democratic Party and pave the way for the Republicans.
David Wilmot was a relatively obscure first-term Democratic congressman when he attached a proviso to a war appropriations bill in 1846 that would alter American history. The Wilmot Proviso, demanding a ban on slavery in any territory acquired from Mexico, was a political thunderclap. It gave explosive voice to Northern resentment over the perceived dominance of Southern slaveholding interests. Though it never became law, the proviso recast the national debate, forcing politicians to take a stand and helping to create the anti-slavery Free Soil Party, which Wilmot joined. His political journey mirrored the nation's realignment; he later became a founding figure of the Pennsylvania Republican Party and ended his career as a senator and judge. Wilmot's legacy is that of a catalyst, whose legislative move made the coming conflict over slavery's expansion undeniable.
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He was appointed by President Lincoln as a judge to the Court of Claims in 1863, a post he held until his death.
Wilmot studied law under future U.S. Supreme Court Justice George W. Woodward.
His Proviso was repeatedly passed by the House of Representatives but was always blocked in the Senate.
He initially opposed Abraham Lincoln's nomination in 1860, favoring Salmon P. Chase instead.
“I would preserve for free white labor a fair country, a rich inheritance, where the sons of toil, of my own race and own color, can live without the disgrace which association with negro slavery brings upon free labor.”