Lincoln's assassination put the future of the nation in question because he was a strong and unifying leader during a pivotal time in American history. The loss of his leadership meant uncertainty and instability for the country as it worked to rebuild and heal after the Civil War. There were concerns about who would take over and whether they would be able to continue Lincoln's work of reuniting the nation. The possibility of further conflict and division loomed large, making the future of the nation's unity and progress uncertain.
