He was a reactionary who blew up the world order and spent the rest of his life trying to protect his accomplishments. Against the odds, he was a supporter of a government safety net. He launched a culture war against his domestic enemies. He played hardball with a frequently uncooperative legislature for which he usually expressed contempt. In the end, when he lost power, the world wondered how it would get along without him.
That’s Bismarck. It’s also Trump, with the exception of the part about being a force for stability after he succeeded.