In a clinical way, Abraham Lincoln was our worst President given that no President before or since caused the country to fracture into civil war. Of course, Obama has two years left to match that particular accomplishment.
Ahem…. Lincoln did not CAUSE the Separation and civil war. That path was inevitable and grew exponentially for decades BEFORE Lincoln ever got into office.
It is becoming more and more obvious that unless all or most Muslims are deported, we will be under Sharia law soon. Since our government will never deport them, there will be violence as the Muslims (and the government) attempt to impose Sharia law. This is why disarming Christian Americans is a top priority.