The biggest change since my last update has been  Joe Biden entering the race. He has more than doubled his chances of being the next Democratic Presidential Candidate and six of the other seven candidates 

Beto O’ Rourke (Implied Probability: 4.8% / -9.9%) (Polling 3% -6%):
I think O' Rourke's star has truly waned now. In the last update six weeks ago, I claimed that Pete Buttigieg offered a more dynamic, compelling alternative for Democratic voters looking for a fresh candidate who could appeal to a vast swathe of the Party's voters. When I googled O' Rourke today, the only headlines he had generated recently were articles about his regret over his Vanity Fair campaign launch. I think there is every chance he drops out of the top seven in the next few months.

Andrew Yang (Implied Probability: 5.1% / -0.2%) (Polling: 1% - 2%):
Yang has been remarkably consistent over the last six weeks. Despite polling on average at 1% and in 11th place, he remains in sixth place in the probability rankings. He needs to be do do more and be heard by a larger proportion of the electorate if he is going to kick on from here.

Elizabeth Warren (Implied Probability: 7.7% / +4.3%) (Polling 5% - 12%):
Apart from Joe Biden, Elizabeth Warren has had the best time of it among the Presidential hopefuls since the last update. She has more than doubled her chances, moved up two places and her polling has increased significantly. I have said for a while that, despite some very interesting and innovative policy launches, she needed momentum. Warren's campaign now seems to have sparked a little and it will be interesting to follow if she can close the gap on Bernie Sanders and challenge him for the champion of the progressive side of the party.

Pete Buttigieg (Implied Probability: 8.3% / -2.8%) (Polling 2% - 10%):
It appears as if Buttigeig is in this campaign for the long haul. He needs to continue to build his voter recognition levels and launch more policies. He is definitely focusing on the former and in the last three days alone, he appeared on Jimmy Fallon and Stephen Colbert. I personally found this appearance a little cringey but Jimmy Fallon is definitely an influential media star for young, liberal voters in the United States. I do think he can do quite well in the debates if he makes it to them in a strong position but he'll need more substance to keep the momentum until then. 

Kamala Harris (Implied Probability: 14.7% / -6.1%) (Polling 5% -10%):
The second update in a row where Harris has dropped by a place. In my view, third looks about right for her at the moment. Harris is certainly a very strong candidate but can not be currently classed in the category as Bernie Sanders, yet alone Joe Biden. The upper end of her polling is similar to Buttigieg and Warren and it is in this second tier of candidates she should currently reside. She has recently started to work on her appeal to voters on the Left and she still has the potential to win, especially if she can take her home state California early on.

Bernie Sanders (Implied Probability: 19.6% / -1.7%) (Polling 11% -25%):
Sanders has continue to campaign well though last time my concern for his chances was "has had everything go right for him so far and avoided any major controversies but still never polls above Joe Biden". This was before Biden had formally entered the race. Now that he has, the gap has increased significantly and Sanders will have to lift his game even higher. He is a good speaker though and once he sees off the challenge from Warren on the left he may be able to frame it as Hillary 2.0 versus the Left.

Joe Biden (Implied Probability: 26.7% / +14.2%) (Polling 33% - 46%):
Biden is now the clear front-runner in almost every category. Polling, betting, endorsements and name recognition. In the last update, he was beginning to waver a little and I did wonder whether he would decide it wasn't worth it at all. However, he recovered from this slight flounder and he now has every chance of taking on Donald Trump in 2020. There is still an expectation that he may commit a few more gaffes and could throw it away but for now, the candidacy is Joe Biden's to lose...
 
*Polling date taken from here

There have been some significant changes since my last article a month ago. We have seen the 6th favourite at that time, Sherrod Brown, declare he is not running while Joe Biden has recently come under serious pressure for allegations of inappropriate touching, initially from Lucy Flores while six other women have since almost made claims.

At the suggestion of a previous reader I am going to add their performance from the most recent opinion polls (using this link for the polling data) to give a little more context and depth. This is very relevant for a candidate like Kamala Harris who has been the frontrunner, or very close to it, in the betting markets for quite some time without ever topping a poll.

Elizabeth Warren (Implied Probability: 3.6% / -1.4%) (Polling: 4% - 8%):
Warren’s campaign is still struggling to come to life. She has tried to embrace a few radical ideas recently like backing moves to dissemble America’s tech giants into smaller companies. I really think she is in serious danger of being a nearly-ran. While the two candidates directly above her have much chance of dropping out of the top seven by next month, they have come from nowhere and are causing a stir. The challenge for Warren is that she has had every advantage starting off her campaign but is now barely making headlines.

Andrew Yang (Implied Probability: 5.3% / New) (Polling: 1% - 2%):
I know very little about Andrew Yang but his campaign and approach have been very sleek and well timed. He is certainly targeting younger, more radical voters and if he can increase his polling slightly, he could make a stir in the early debates. However, I ultimately don’t think he will be a top tier contender and will be surprised if he stays in the top seven.

Pete Buttigieg (Implied Probability: 11.1% / New) (Polling 1% - 4%):
The most interesting candidate in the field. Yes, I am slightly biased as his paternal ancestors hail from my current home, Malta, but he has so many facets to his candidacy. He is a gay Afghanistan veteran, Harvard and Oxford graduate who speaks seven languages. He is currently mayor of South Bend, Indiana. I highly recommend watching this short profile of him from the Tonight Show. I will be following him closely as, in my opinion, he is a much more interesting character than Beto O’ Rourke who also represents the “fresh face” of the Democratic Party’s 2020 candidates.

Joe Biden (Implied Probability: 12.5% / -3.6%) (Polling 26% - 33%):
Biden has had a horrific week for reasons I’ve mentioned already. He still hasn’t officially announced his intention to run but that is seen to be one of American politics’ worst kept secrets. However, these allegations will certainly have been food for thought for him and his advisors. He’ll probably have to try and reverse the damage in the next few weeks before announcing as I am certain he will not want to kick off his campaign in this cloud of controversy. There also still a small chance he decides it’s simply not worth running at all…

Beto O’ Rourke (Implied Probability: 14.7% / No Change) (Polling 5% -12%):
Since Beto announced his intention to run on the 14th of March he has managed to raise a significant amount without really exploding out of the tracks. There have been criticisms of the blandness of his key messages and I do wonder if he will really make his mark in the business end of this campaign. Incredibly, he is the exact same odds as he was a month, which is even more surprising given the other major swings.

Kamala Harris (Implied Probability: 20.8% / -0.9%) (Polling 8% -12%):
She has fallen one place to second, but Harris is a big beast who many believe will go all the way. One of her major advantages is that her home state, California, has moved earlier in the campaign from June to March. If I was her campaign manager, I would still be slightly concerned by her polling numbers which are not really ticking upwards. However, I would still not bet against her and I think she will be there or thereabouts at the business end of proceedings.

Bernie Sanders (Implied Probability: 21.3% / +4.6%) (Polling 18% - 26%):
The bookies have him favourite and I think I agree. My one concern is that he has had everything go right for him so far and avoided any major controversies but still never polls above Joe Biden. However, he has raised the most funds, has a very strong online presence and has managed to prevent Elizabeth Warren eating into his vote (at the outset many progressives feared that if they both ran it would split the progressive vote). I have long backed Sanders and have grown more confident over the last month, but his age is such a massive disadvantage and I do worry he could struggle against younger candidates in the early primaries, especially in California. On the flip side if he starts strongly, and Biden’s star continues to wane, he could convince the Party that the electorate have moved to the left and it would be fatal not to support his candidacy for a second time.
 
Notable Others: It would be foolish to discount Cory Booker (3.3%)(2% - 4%), Tulsi Gabbard (2.9%)(1%) or Amy Klobuchar (2.5%)(1% - 3%) yet but Klobuchar in particular has dropped significantly. There are other candidates, but they aren’t making the impact required to be mentioned this time. 

This is the first in a new series of articles I'm going to run in the race to become the Democratic 2020 Presidential candidate. I will rank the top seven candidates in order of implied probability from Betfair Exchange. Implied probability gives the % chance of an event occurring based on the odds. I prefer using the exchange as it is more fluid and reflects changes more accurately.

I will try to write a new article quite regularly (but at least thirty days apart) and I will highlight how the candidates have moved both positionally and from a probability perspective. To keep it exciting I'll write from least to most likely to become the 2020 Democratic Presidential candidate. Despite the fact that more than 10 candidates have already announced, with another ten or so actively exploring, I will keep it at the top seven so I can focus more on each one. Naturally, the candidates with the highest percentage will dominate the majority of the post. When the race gets close to the finale, the number of candidates will have whittled down to a handful but for now it is a massively open and competitive field.

7: Elizabeth Warren (5%):
Warren announced her campaign on February 9th. She was one of the first Democratic heavyweights to do it and it was expected she would rapidly become one of the favourites, competing with Bernie Sanders on the progressive side of the party. However, it simply hasn't happened for Warren so far. She doesn't seem to have the charisma on the campaign trail and if she doesn't gain some momentum soon, this once very promising campaign is set to fail before it ever really began.

6: Sherrod Brown (5.1%)
The sixty-six year old Ohio Senator was one of Bernie Sanders' strongest allies in the Senate but ultimately endorsed Hillary Clinton in 2016. He is seen as a potential unity candidate but hasn't announced if he will run yet. He is currently finishing his "Dignity of Work" tour which has seen him visit many of the most important early primary and caucus states.

5: Amy Klobuchar (5.9%)
The Minnesota Senator announced she would run a day after Elizabeth Warren on February 10th. She is seen as a tough, no-nonsense candidate who could garner the support of the Democratic Party elites while being competitive in "purple" states like her own Minnesota. There have been accusations of bullying from former members of her staff which may haunt her moving forward.

4: Beto O'Rourke (14.7%)
At the moment we have a "Big Four" in terms of probability. Beto is one of the rising stars of the party. Up until a few weeks ago he was the favourite but his delay in announcing his bid has been seen by some as indecision after a meteoric rise in profile following a very close defeat to Ted Cruz for a Texas Senate seat in the November midterms. If he does announce and gathers some momentum, he could easily become the front-runner.

3: Joe Biden (16.1%)
The two-time Democratic Vice President is loved by many on the Democratic side and even now before he has announced if he will run or not, leads almost every poll with approximately 25% to 35% of the votes. Though he is another candidate who could become the front-runner with a well-executed announcement,  there is a still a significant chance he'll decide it isn't for him...

2: Bernie Sanders (16.7%)
To many, Bernie Sanders should have been the candidate to take on, and beat, Donald Trump in 2016. However, that campaign, and the grassroots success it had has undoubtedly pulled the party to the Left. The question is now whether Bernie Sanders is still the candidate that best represents democratic socialism in the United States in 2019 and 2020. His campaign has started well with large crowds and very impressive fundraising but it still remains to be seen whether his chance of being President of the United States has passed.

1: Kamala Harris (21.7%)
The front-runner. A Senator from California, she also served as the state's Attorney General from 2011 to 2017. She has almost everything going for her. A woman of mixed background, she embodies the diversity that many in the party want to see come to the fore, in direct contrast to candidates like Biden and Sanders. She was also very impressive in the Senate Hearing for Supreme Court nominee Brett Kavanaugh. The key questions that remain are can she compete on the campaign trail and is she progressive enough for the Democratic Party in 2020? 

Notable Others: Cory Booker(4.8%) is very unlucky to miss out though having announced on Feb 1st, he will need to get moving up the chart soon. Tulsi Gabbard (4.2%) is an interesting candidate from Hawaii and who is very anti-war but I will be very surprised if she ever really becomes a key candidate in this race.