№ 15James Buchanan

Pros:

The Civil War wasn't his fault, he was just left holding the hot potato after the last 14 guys enacted increasingly short-lived band-aids.

Cons:

Leaned on the Supreme Court to get the Dred Scott decision which kicked off the civil war. Broke the country.

Fun facts:

3 members of congress died at his inauguration.

A Twitter thread about James Buchanan.