The regional enforcement and subversion of the 1850 Fugitive Slave Act also added to the mounting tension and hostility between Northern and Southern states leading up to the Civil War.

各地区对1850年法案的态度不一，有的坚决实行，有的暗中违抗，从而加深了南北两方的自由州和蓄奴州之间的裂痕，敌意日渐加剧，形势日趋紧张，最终导致了内战。

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In resistance to the Fugitive Slave Act the state of Wisconsin enacted a Personal Liberty Law that said they were not going to enforce the Fugitive Slave Act and turn in fugitive slaves, and the justification was that it was their state's right to do so.

为了抵制逃亡奴隶法,威斯康辛州政府颁布了个人自由法,规定他们不会执行,逃亡奴隶法并交出逃奴,理由是,该怎么做是他们州的权利

耶鲁公开课 - 美国内战与重建课程节选

But in 1850, Congress passed the Fugitive Slave Act, making it easier than ever for slave owners to reclaim runaways.

WSJ: Book Review: To Free a Family

As a newly arrived senator in 1850, he delivered a three-hour stem-winder before packed galleries, denouncing the Fugitive Slave Act and disagreeing with his illustrious elders Clay, Webster, and Calhoun about the extension of slavery.

NEWYORKER: Union Man