For a start: he suspended the writ of habeas corpus, he instituted the draft, he didn/t act to free slaves in areas under his control, he spent money without Congressional authorization.
Who cares! This country owes him a debt of gratitude that can never be repaid. He DID free the slaves by his actions. And, in all honesty, the Constitution works really well except during wartime. I agree with all the things he did, mostly. But, maybe I'm just a moron who doesn't like when greater things are done for future generations like me. (sarcasm)