The correct answer should be Black men, carpetbaggers, and scalawags.
The black people were emancipated African-American people who joined the local governments. Carpetbaggers were northern politicians who moved south in order to attain wealth and high political power. Scalawags were were southern supporters of the republican party and the reconstruction. All three groups joined southern politics after the Civil War.
Merchants of death is a common moniker for arm dealer..
When voting for a president you need to think of what they do for your Country. As an example, will the President add good founding to your area, will the President make fair rights? You need to keep all those things in mind while voting.