How effective was Andrew Johnson's presidency?

Andrew Johnson's presidency (1865-1869) is often viewed as ineffective, primarily due to his failure to effectively manage Reconstruction after the Civil War. His lenient policies toward the South and opposition to civil rights for freed slaves alienated Congress, leading to his impeachment in 1868. Although he was acquitted, his inability to forge alliances and implement a cohesive plan for national unity hindered progress during a critical period in American history. Overall, his presidency is marked by conflict, lack of vision, and significant political turmoil.