Final answer:
After Lincoln's death, Reconstruction in the United States underwent changes as differing opinions emerged among politicians and the public. The Radical Republicans took control of the process and implemented Reconstruction Acts to punish and rebuild the South.
Step-by-step explanation:
After Lincoln's assassination, the process of Reconstruction in the United States changed. Lincoln had a lenient and conservative approach to Reconstruction, aiming for a quick resolution and the reintegration of the Southern states into the Union. However, with his death, differing opinions emerged among the public and politicians. Anger in the North became a factor, and debates arose about whether the South should be accepted back or punished. The Radical Republicans took control of reconstructing the South and passed various Reconstruction Acts to punish and rebuild the region.