What did Johnson require states to do to remain in the union?

President Andrew Johnson required Southern states to ratify the 13th Amendment, which abolished slavery, and to create new state constitutions that guaranteed civil rights for freed slaves in order to be readmitted to the Union after the Civil War. Additionally, he mandated that states nullify their secession ordinances and pledge loyalty to the Union. Johnson's approach was lenient, aimed at quick reconciliation, but faced significant opposition from Radical Republicans who sought stronger protections for African Americans.