The President's cabinet secretary came to his defence, only for Donald Trump to abandon the position hours later.
At the G20 summit on Saturday President Trump tweeted about the content of his conversations with Russia's President Vladimir Putin.
It included creating an 'impenetrable cyber security unit':
The remarks were presumably made to quell discussion of Russian interference in the 2016 US presidential election.
Appearing on ABC news on 8 July, Trump's Treasury Secretary Steven Mnuchin defended the idea of a joint cyber security unit with the Russians.
Secretary Mnuchin called the step a 'very significant accomplishment'.
On 10 July, less than 24 hours later, the President said the unit wasn't actually going to happen, that he and President Putin has merely discussed the prospect.
Which was slightly embarrassing, as Twitter noticed: