What was Stephen A Douglass view on slavery Each state should decide whether to be a free or slave state,
The federal government should abolish slavery.
Slavery should be prohibited in all new territories
All enslaved Amcans should be freed and granted citizenship,

All enslaved Amcans should be freed and granted citizenship - Citizenship would have granted the right to vote.

Explanation:

For a century and a half, historians have debated whether Douglas opposed slavery, and whether he was a compromiser or a devotee of principles. In his "Freeport Doctrine" of 1858, he repeatedly said that he did not care whether slavery was voted up or down, but only that the people had the right to vote it up or down.

All enslaved Africans should be freed and granted citizenship.

Explanation:

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.