Despite a lack of evidence that it occurred, Napolitano claimed his sources indicated the British intelligence agency Government Communications Headquarters eavesdropped on Trump and provided transcripts to the Obama administration.
In a White House press briefing Monday, one reporter questioned press secretary Sean Spicer about Trump's golf habits, which are on pace to far outstrip Obama's time on the golf course while president. Shortly before inauguration day, Napolitano had a one-on-one meeting with Trump about Supreme Court nomination possibilities. Instead of using US intelligence services, Napolitano said, Obama used Britain's Government Communications Headquarters, or GCHQ, to ensure there were "no American fingerprints on this". But before he ran for office, Trump was the most fervent critic of the fact that President Barack Obama regularly hit the links with friends, aides and advisers, arguing that it showed the president was unserious about fixing America's problems.
Now, The Times is reporting that British foreign secretary Boris Johnson is visiting the USA this coming week to "patch up ties" with the White House, along with other planned meetings.
"That was a statement made by a very talented lawyer on Fox [News]".
In response, GCHQ, usually silent on intelligence matters, sharply denied that it had engaged in any of the activities described by Napolitano.
Inflation surges to 2.3% - highest level since September 2013
Food prices rose 0.3pc last month having fallen consistently for the past two and a half years. That was actually a bigger rise than economists polled before the release expected.
But that did not stop Trump from bringing them up again.
Asked if President Trump's "baseless" claims against British security services damaged the close relationship between the two nations, Admiral Rogers replied: "I think it clearly frustrates a key ally of ours". I didn't make an opinion on it.
"So you shouldn't be talking to me", Trump added, "you should be talking to Fox".
"Jeremy will be expected to make a trip to the U.S. very early on to seek reassurances from our partners".
But Napolitano said on one program that "Fox News has spoken to intelligence community members who believe that surveillance did occur, that it was done by British intelligence".
On Friday Shep Smith told viewers that "Fox News knows of no evidence of any kind that the now-president of the United States was surveilled at any time, in any way". "Full stop", Shepard said on air.