The North had opposed the extension of slavery because they didn't want the 'inhumane' segregation to spread the the newer joining territories/states. And they couldn't have yet attempted to abolish slavery all together at that point because the segregation force was too large and powerful. So they hoped to only turn new territories/states anti-slavery.
Slavery was one issue, equal rights was another issue. So to say that Northerners did not like segregation is not true. Segregation existed in the North and the USA as a whole for decades after the Civil War.
Generally speaking, Northerners and Northern politicians believed that slavery should not be allowed to expand to new territories or new states. Part of their argument was negated in 1857 by a ruling by the US Supreme Court which said slavery was constitutional.
It did that. The issue could not be ducked by a Congressman. All had to vote in favor of, or opposed to slavery.
They opposed the extension of slavery into the western territories.Below is a link with more info.united-states-free-soil-party
In 1820, politicians debated the question of whether slavery would be legal in the western territories. The Missouri Compromise permitted slavery in the new state of Missouri and the Arkansas Territory but it was barred everywhere west and north of Missouri.
NW ordinance of 1787
free soilers
"FREE-SOILERS"
Generally speaking, Northerners and Northern politicians believed that slavery should not be allowed to expand to new territories or new states. Part of their argument was negated in 1857 by a ruling by the US Supreme Court which said slavery was constitutional.
The politicians in the North that advocated anti-slavery were called Abolitionists.
The extension of slavery into territories acquired from mexico
The new Southwestern territories that were seeking admission to the USA. The Republicans wanted to maintain the Northern majority in Congress, so that they could continue to protect Northern industry by levying tariffs on imported goods, which were mostly needed by the South.
36' 30'
austin lewis's war
J. M. Mason has written: 'Property in territories' -- subject(s): Extension to the territories, Slavery
The extension of slavery into new territories
The extension of slavery into new territories
Harrison Gray Blake has written: 'Equality of rights in the territories' -- subject(s): Extension to the territories, Slavery