The three main questions for Reconstruction were: how to readmitt the Confederate States into the Union, would the status of slaves would be, and what should be done with the rebels?
Plans for Reconstruction
Lincoln's Ten Percent Plan: required 10% of voters to swear an oath of allegiance to the Union and accept the Thirteenth Amendment.
Wade-Davis Bill: enacted by Radical Republicans in Congress. Provided that the Confederate States be ruled by a military governor and required 50% of electorate to swear an oath of allegiance. Pocket vetoed by Lincoln.
Johnson's Reconstruction Plan: Called for the creation of provisional military governments to run the states, required all Southern states to swear an oath of loyalty (but prohibited most Southern elite from doing so), pardoned many Southern elite. Because of this many former Confederates became Congressman, however Northern Congressman opposed this. Johnson's plan essentially failed.
Southerners who cooperated with Reconstruction were called scalawags and Northerners who ran the programs were called carpetbaggers.