How did the dred scott decision affect the election in 1860

The south said they were going to secede if Abe got elected president, this has to do with the Dred Scott case because the north was against slavery and this case said that slaves and free blacks were not citizens and they had no right to sue in the first place

which I think is wrong, anybody can sue. But hey whatever my opinion    

less available tax revenue

this basically means that when they get money from taxes wirth having a lower gdp they get less then what others have with a higher gdp

can you tell me all of statements so i can answer this for you.

until then have a great week.

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