Three years of unprecedented volatility in politics have taught us two betting lessons. First, there has never been a better time in the history of this particular medium to take big odds about upsets. Second, Donald Trump and Emmanuel Macron showed you don't need to be a politician to win elections and that outsider candidates may even be at an advantage nowadays.
Indeed in the aftermath of Trump's victory, all sorts of unimaginable presidents were backed to win the 2020 Election. Oprah Winfrey was backed down to 8/19.0 merely on the back of a Golden Globes speech. Facebook chief Mark Zuckerberg was popular at 20/121.0 before the Cambridge Analytica scandal soiled his brand. Most bizarrely, Dwayne 'The Rock' Johnson was matched down to 15.5.
None of them ever made any appeal but here's another with much more realistic credentials and tremendous potential, at much bigger odds. When tweeting this seven weeks ago, it was merely a speculative punt at an average of 267.0 on somebody who probably wouldn't run but whose odds would likely shorten.
In light of subsequent events and behaviour. Avenatti now rates a confident, top value trade at anything down to half his current 99/1100.0 odds. He's running.
The media has been hanging on Avenatti's every word ever since entering the public arena on behalf of his most famous client, Stormy Daniels. Confident, articulate and telegenic, he has become almost omnipresent on cable news.
Nobody has done more to expose the criminality and corrupt dealings of Michael Cohen that now threaten the president. He receives ovations on chat shows for promising to bring Trump down and his political moves show he's pitching to lead that fight.
Avenatti is already courting key primary voters
In recent months, Avenatti has visited the opening primary states, Iowa and New Hampshire, generating incomparable coverage than any other Democrat candidate would expect.
He's making set-piece speeches and spearheading causes of fundamental importance to the Democrat base - reuniting detained immigrant children with their families, championing womens' equality. Correctly gauging the mood amongst 'The Resistance', he wants to get big money out of politics.
These factors alone make him a better bet than celebrities who rarely if ever intervene in politics. He is certain to remain a central figure either directly taking the fight to Trump via those cases and other women accusers he represents, or relentless commentary on Twitter and cable news.
It is the perfect audition for 2020 and, were he to confirm his candidacy sometime next year, it would likely garner the sort of publicity Trump kickstarted in 2015.
Trump proved media saturation is the key
Indeed he could could repeat some of the 21st century tactics employed to such devastating effect in 2015. Hog the news cycle and squeeze out rivals in what will probably be a crowded field for the Democratic Nomination, at the exact moment they urgently need coverage to gain name recognition. Ensure you are the centre of attention when their chance arrives at TV debates, by which time his momentum could be unstoppable.
Lack of political baggage is an advantage
Whilst lacking baggage, he is not without political credentials either, A self-described 'Bill Clinton Democrat', Avenatti worked for the party back in the 1990s and, having vigorously promoted liberal causes recently, might be able to ward off attacks on being an outsider.
His lack of political definition and inclusive policy language will also appeal better to independents and anti-Trump Republicans than from most Democrats.
Of course there are plenty of counter-arguments. After Trump, the last thing Americans might be yearning for is another outsider with no governing experience. He lacks the organised, committed following of rivals such as Bernie Sanders or Elizabeth Warren. Does he know enough about policy and how to position a campaign? His personal and professional life has yet to be scrutinised. Sure, Trump won despite breaking all the rules but everybody now knows the new rules.
No matter - those are fair risks to take about a 99/1100.0 chance. I'm confident these odds will go a lot shorter. As reiterated last week, my prediction remains that Trump won't run again in 2020. However if he is the Republican Nominee, Avenatti is right that the Democrats need a streetfighter. If as seems increasingly likely, the election turns out to be Trump on trial, I can't think of a more convincing prosecuter.
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Follow Paul on Twitter and check out his website, Political Gambler.