Why were Northerners upset about the Dred Scott decision? It upheld the Missouri Compromise.
It said that slavery could become legal everywhere.
It stated that only Congress could ban slavery.
It reinforced the Fugitive Slave Act.

It said that slavery would become legal everywhere

“larger states wanted congressional representation based on population, while smaller states wanted equal representation. they met in the middle. larger states wanted congressional representation based on population, while smaller states wanted equal representation.” i hope this information you.

Answer for apex - the reformation