The election of Donald Trump was a through-the-looking-glass moment in American politics.

As in, everything that we — the collective political horde — thought was conclusive about how you win an election (outspend your opponent, build a better organization, lead in polling, run more TV ads) was disproved in one fell swoop on Nov. 8.

Trump did everything wrong — by these traditional standards — and he won. And it wasn’t the first time. The traditional rules of the road would have meant that Trump never rose beyond the 1 percent of the vote with which he started the Republican primary-season fight. The idea that a candidate could bully and insult his way to the Republican nomination over 16 (largely) serious candidates was simply unthinkable. The “rules” said it couldn’t happen.

Trump, to his immense credit, understood that a) flouting the rules actually endeared him to a big swath of voters and b) there just might not be any real rules at all.

That insight allowed him to play a totally different game in both the primaries and the general election. While the political establishment was tut-tutting over Trump’s fight with a Gold Star family or his comments about the weight of a former Miss Universe, the real estate mogul was in the process of remaking how political campaigns are won. Through a combination of a massive social-media presence, his celebrity and the belief — disproved by facts, but no matter! — that he was a straight shooter, Trump took every rule of the game and not just broke it but smashed it.

The Fix's Callum Borchers explains the history of the “protective pool” of reporters that traditionally follows the president, and recounts a few times when a protective pool ended up being critical. (Peter Stevenson/The Washington Post)

All of which meant that on Nov. 9, the political establishment was left to look at the shards of conventional wisdom scattered everywhere to try to find meaning. How did we do it? In most cases, by falling back on the very same assumptions and analytical points that led us to miss “Donald Trump, president” so, so badly.

[10 Post reporters look back on chronicling an unconventional campaign]

How could Trump chat with the Taiwanese president, breaking decades of protocol and potentially endangering our fragile detente with China? How could he pick — or be on the verge of picking — the chief executive of ExxonMobil as secretary of state? Or Ben Carson, a doctor, to head the Department of Housing and Urban Development? Or, more parochially for reporters but no less hidebound by tradition, not agree to have a protective press pool follow him wherever he goes? Or a hundred other smaller breaks with “the way things are done” that Trump has engineered over the past month or so?

The simple truth is that Trump’s transition process has been a logical continuation of the campaign he ran: a total disregard for the established methods and the rules governing those methods. If you back Trump, you are undoubtedly thrilled with these moves, believing that he promised radical change in a broken Washington and is delivering on it. If you oppose Trump, you see his flouting of the established order as not only risky, but also deeply dangerous.

I take no side in that fight. But I do think that it’s absolutely necessary to avoid using the old measures of success or failure to assess Trump. He has proved, repeatedly, that those metrics simply do not apply to him. To continue to analyze him and his moves as we would, say, President Jeb Bush or President Hillary Clinton, is to ignore the fact that any traditional analysis of the campaign Trump ran would never have put him anywhere near the White House.

[‘I will give you everything.’ Here are 282 of Donald Trump’s campaign promises.]

Two major questions remain:

1. Is Trump’s ability to innovate in the political campaign space — that’s exactly what he has done, whether you like it or not — something that can carry over to his time in the White House? Do voters want something different in a president than they want in a presidential candidate? If so, Trump’s unwillingness to change could badly damage his presidency.

2. Is Trump an exception in politics or the new rule? Is it his unique combination of celebrity, social media and brashness coupled with these deeply anti-political times a one-off? Or does he represent a new normal in politics? Will the 2020 campaign be filled with Trump takeoffs — Mark Cuban, Howard Schultz, Kanye West(?) — or will it be the usual assortment of governors, senators and House members?

I don’t know. What I do know is that Trump is like nothing else we’ve ever seen in modern American politics. We all need to adjust accordingly.