"Abe Lincoln in Illinois" is a play by Robert E. Sherwood that explores the early life and political career of Abraham Lincoln before he became the 16th President of the United States. The play focuses on Lincoln's time in Springfield, Illinois, highlighting his struggles, relationships, and the events that shaped his character and beliefs. The narrative delves into Lincoln's interactions with key figures, including his future wife, Mary Todd Lincoln, and his political rivals. It captures the challenges he faced as a lawyer and politician, ultimately setting the stage for his rise to national prominence during a tumultuous period in American history.