Top Republicans in the US are warning President Trump that some of his latest Tweets about the ongoing investigation into his aides' ties to the Russians are putting him in legal jeopardy.
Over the weekend the President, on Twitter, fueled the notion that he may have engaged in obstruction of justice when he the FBI Director James Comey earlier in the year.
Mr. Trump's Twitter fury knew no bounds over the weekend.
He said the FBI's reputation is "in tatters", insisted he was the victim of a "rigged system" and said that his fired National Security Adviser Michael Flynn - who last week pleaded guilty to lying to the FBI - had done nothing unlawful.
Our US Correspondent Simon Marks reports.
IN: "If anyone….."
OUT: "….evidently does not possess"
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If anyone had any doubts about the danger Donald Trump's Twitter account poses for his Presidency, they were finally dispelled this weekend.
The President simply cannot help himself from expressing his stream-of-consciousness, innermost fury on the social media platform.
In two separate rants, with no filter, no off switch and no legal training….he reacted furiously to the news that his former National Security Adviser Michael Flynn pleaded guilty to lying to the FBI….the result of the latest stunning moves by the Special Prosecutor investigating ties between the Trump team and the Russians.
At least one Tweet fueled the suggestion that the President had committed obstruction of justice ….and left top Republican Senator Lindsay Graham of South Carolina taking to the airwaves, and begging Donald Trump to stop.
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Sensing the legal morass in which the President may have placed himself, the White House moved to argue that the Tweet in question had been written by his lawyer, not Mr. Trump himself.
But the White House has previously argued the President's Tweets should be viewed as official Presidential statements….and even published in his name it would be just as legally perilous as if he's written it himself.
Behind the scenes, administration aides are panicked by Special Prosecutor Robert Mueller's relentless pursuit of his quarry and the President's response to it.
But in public, National Security Adviser HR McMaster is one member of the Trump team still pretending everything is fine.
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Which doesn't explain why the President's Defence Secretary, in meetings at the Penagon, often refers to himself as the Minister for Reassurance.
Donald Trump, by common consent, would be crazy ever to Tweet again about the ongoing investigation into his campaign's affairs.
Like every statement anyone makes, Tweets "can and will be used in evidence against" him if a case is ever built.
But staying off the subject Twitter….well that requires self-control: something the President of the United States evidently does not possess.