What was abraham lincoln’s concern about the supreme court’s dred scott decision? that it would make slavery legal across the nation that it would lead to the direct election of senators that it would lead to the abolition of slavery that the republican party would not support it

It would make slavery legal across the nation

Explanation:

eroupe is a great mideval place and alot of wars went on alao

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.