In measured language, he criticised the Prime Minister for the Brexit deal she had persuaded her Ministers - a lot of them at least - to agree to, and for not following his advice on how to negotiate with the EU.
Mrs May revealed the U.S. president's advice on the BBC's Andrew Marr Show on Sunday.
Today Mrs May revealed his advice was in fact to "sue the EU".
May pointed out that Trump, who was visiting Britain, had also advised that now she was in a negotiation, she should not walk away.
"Don't walk away from negotiations, because then you'll be stuck".
It wasn't exactly clear what Trump meant.
The Prime Minister admitted that the white paper was prompted by a need to compromise with the European Union following her earlier Mansion House speech, but asked MPs to "come together behind our plan", in an article in the Mail on Sunday.
Later, Trump contradicted those earlier comments which he cast as "fake news" though The Sun posted a recording of the interview, and said he hoped to do a "great" trade deal with the United Kingdom. He said he had told May how to conduct Brexit negotiations, "but she didn't listen to me". At Sandhurst, Britain's elite academy where military officers undergo training, Trump watched a display, travelling later in the now customary helicopter to Chequers, the prime minister's country retreat in Buckinghamshire where he and May held talks.
Pacquiao-Matthysse match on GMA 7 today
It was Pacquiao's first victory inside the distance since 2009 and improves the eight-division world champion's record to 60-7-2. Matthysse, 35, had won 36 of his 44 fights by knockout going into the bout.
"This is, at best, an untrusting way to behave and a more severe commentator would call it untrustworthy", he wrote. May try in her discussions with Brussels over the terms of Britain's planned exit from the EU.
Much was made by the American President about "advice" he gave the Prime Minister when they met at Chequers on Friday.
Donald Trump claimed he was misquoted by the Sun in his biting criticism of Theresa May - a bombshell for a foreign leader to level while a guest in another country - and said he had the tape to prove it.
"The relationship is further back than it was a few days ago", Dr. Jacob Parakilas, deputy head of the US and Americas program at London-based think-tank Chatham House, told Xinhua in an exclusive interview on Friday.
Mr Khan spoke of his "big concern" over the capital's services sector, warning independent analysis showed that a Brexit no deal would be "catastrophic for our city". That has infuriated fervent Brexit supporters, who see it as a bad deal.
"David Davis was discussing with [EU chief negotiator] Michel Barnier".
He said: "Well it wasn't my blimp or my balloon, but we have in our city and our country, as indeed does the U.S., a rich history of the right to protest, the right of free speech and the right to express our views and the idea that we would curtail these rights because it may cause offence... actually what you saw on Friday was peaceful protest and done in a safe way".
She acknowledged that some lawmakers had doubts about her plans to stick to a "common rulebook" with the bloc for goods and agricultural products in return for free trade, without tariffs or border customs checks, but insisted she couldn't see a viable alternative.