What was the strongest criticism of the constitution

The social contact theory states that

Sariah enters a room with several chirping crickets in it. upon first entering the room, sariah can hear the chirping; however, as she begins to talk to her friends, she is no longer aware of the chirping even though it is still there. the fact that sariah no longer perceives the chirping sound demonstrates sensory

Why did lincoln inform the confederacy that he would not e sending troops or weapons as food supplies were sent to fort sumter?