What were the northern views on the Compromise of 1850?

Views on the compromise as a whole varied. Most Northern Democrats were supportive of some of its specific aspects. Popular sovereignty, the proposed "solution" to the issue of slavery in Utah and New Mexico Territories, in fact became a plank in the Democratic Party platform for the next decade. Most generally supported the abolition of the slave trade in Washington, D.C.. By far the most unpopular aspect of the Compromise was the revamped Fugitive Slave Act. This act basically criminalized giving even basic assistance to runaway slaves, and weighted courts in favor of owners when suspected fugitives were tried. This outraged many Northerners, even those who had been relatively apathetic to the issue of slavery previously. Angry crowds freed apprehended fugitives on multiple occasions in Boston, Philadelphia, and other towns. Many states passed "personal liberty laws" which essentially allowed people to violate the Fugitive Slave Act. The law was part of the inspiration for some parts of Uncle Tom's Cabin. The reaction to this part of the compromise was thus very negative.