The modern far-right really got it’s first big taste of legitimacy with the Tea Party. Which, yes, would be 2009-ish, and a blood-relative to the election of Obama. (E.g., without Obama as president, the racist fears of the Tea Party would have fizzled out in the harsh light of reality.) But I look at all of this on a continuum; the only two conservatives I see in recent memory that have made an apparently sincere attempt to stop the crazy train have been John McCain (…although he took Palin as a running mate…) and Mitt Romney, and they both got crushed by Dems. Well, maybe Liz Cheney too. Maybe. But she was okay with everything except Trump, so I dunno. Anyway, point is - Nixon, Reagan, and Gingritch were all laying the foundations and drawing up the architectural plans that Trump has used, and is using now, to build his version of a fascist state.