On may 22, 1856, south carolina congressman preston brooks attacked massachusetts senator charles sumner on the senate floor in response to a speech entitled "the crime against kansas" that senator sumner had given days earlier. what was sumner's argument in his speech?

He spoke out against the Kansas-Nebraska Act.

Explanation:

In his speech "The Crime Against Kansas," Senator Charles Sumner spoke out against the Kansas-Nebraska Act. This act was very controversial, and it had created the situation known nowadays as "Bleeding Kansas." The senator had openly opposed slavery, condemned all those who supported it, and talked badly about Andrew Butler, a member of the Senate from South Carolina.

answer:

on this day in 1857, the united states supreme court issues a decision in the dred scott case, affirming the right of slave owners to take their slaves into the western territories, therebynegating the doctrine of popular sovereignty and severely undermining the platform of the newly created republican party.

explanation: