Once he started to challenge the Republican establishment and come out and tell the people how the "silent majority" felt was the point in which he really popped in terms of really being remembered and fame.
Whether he will be remembered in infamy by future generations or as a person misunderstood by the times still remains to be seen. It really does depend on if they actually get things done that help people over-all even if it creates chaos in the mid-term.
Anyone that is challenging and breaking the status-quo is always going to bring about controversy.
Tons of controversy, but I personally think I'd rather have controversy then nothing based on the sheer fact of if he isn't involved in controversy what is he doing to hide what he's doing at the moment? It's not like we heard a ton of problems about the Obama administration but things are coming to light now, sadly.