How did James Buchanan fulfill his role as a chief executive?

James Buchanan fulfilled his role as chief executive by attempting to maintain national unity during a time of escalating sectional tensions leading up to the Civil War. His administration focused on upholding the Constitution and enforcing Federal Laws, but he often struggled with divisive issues like slavery and states' rights. Buchanan's decision to support the Lecompton Constitution and his failure to effectively address the secession of Southern states highlighted his weaknesses as a leader. Ultimately, his inability to navigate the growing crisis contributed to the onset of the Civil War.