Who adopted Lincoln's plan for reconstruction?

Lincoln's plan for Reconstruction, which aimed for a lenient approach to reintegrate the Southern states after the Civil War, was largely adopted by his successor, President Andrew Johnson. However, Johnson's implementation faced significant challenges and opposition from Congress, particularly from the Radical Republicans, who sought a more stringent approach. Ultimately, while Lincoln's vision influenced the early stages of Reconstruction, Congress's response led to a more complex and contentious process.