What was Abraham Lincoln’s concern about the Supreme Court’s Dred Scott decision?

Question

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

Answer 1

Abraham Lincoln's primary concern about the Supreme Court’s Dred Scott decision was that it would make slavery legal across the nation. The decision ruled that African Americans could not be citizens and that Congress had no authority to prohibit slavery in the territories, which alarmed Lincoln and many others who opposed the expansion of slavery.