Where are you looking and when did it say it was updated?

Here’s what I see on Betfair; updated as of July 13th it says:

• Donald Trump = 1.654/6 = 1.28 decimal = 78% win
• Joe Biden = 10.09/1 = 11.1 decimal = 9% win
• Kamala Harris = 5.69/2 = 3.85 decimal = 26% win

(Note they sum to more than 100%, because of the “house cut” nonreciprocal nature of the odds)

If there are more recently updated numbers that now say 1.58 decimal, that would mean the odds of Trump winning have dropped from 78% to 63%. I’d say that’s a fuckin slump.

(Also note - that doesn’t mean they think Biden has a 10% chance of winning if he stays in. It means the chance he will stay on as the nominee times the chance he will win in the election is 10% – although looking at their odds for who the D nominee will be, it looks like they also think he has a lower chance of winning than Kamala, if he is the nominee.)