Final answer:
One of President Lincoln's rhetorical changes as the Civil War ended was his emphasis on peaceful reconciliation to bring the Southern states back into the Union and restore unity.
Step-by-step explanation:
As the Civil War drew to a close, one of President Lincoln's rhetorical changes was his emphasis on the importance of peaceful reconciliation. Advocating for peaceful reconciliation meant working towards bringing the Southern states back into the Union and restoring the country's unity. Lincoln's goal was to reintegrate the former Confederate states through a generous and non-punitive plan, rather than seeking retribution.