A Fox News commentator known for her avowedly pro-Trump views called on House Speaker Paul Ryan to step down for the Republican health care debacle, hours after the President himself urged his Twitter followers to watch the show.

Jeanine Pirro, the right-leaning cable channel's legal analyst and former judge and prosecutor, began her weekly show on Saturday evening with a 10-minute monologue blasting Ryan for 'complete and total failure' in getting Republican House members to support the repeal of Obamacare.

Pirro said Ryan must shoulder the blame, not President Donald Trump, because the Wisconsin congressman has more experience in politics than 'the outsider' Trump.

'How could you possibly misjudge this,' an angry Pirro said of Ryan.

'I certainly have not spoken to the president about any of this, but I can only imagine that he and his aides took on healthcare because they believed you had his back, and you didn't! They didn't even test the waters.'

Jeanine Pirro, a Fox News commentator known for her avowedly pro-Trump views, called on House Speaker Paul Ryan to step down on Saturday for the Republican health care debacle

Pirro said Ryan must shoulder the blame, not President Donald Trump, because the Wisconsin congressman has more experience in politics than 'the outsider' Trump

Ryan is seen above on the left answering questions at press conference at the US Capitol after the Republican health care bill was pulled from the floor of the House on Friday. Pirro said on her Fox News show on Saturday that Ryan 'didn't have President Donald Trump's (right) back'

Pirro said that Ryan 'has got to go' because

'The American people won't forget this and neither should the president,' she said.

Earlier on Saturday, Trump tweeted a teaser, urging his Twitter followers to watch Pirro's show. It had been suggested the show may air information about the Obama administration's alleged spying on his campaign.

That did not happen.

President Donald Trump, fresh off of his failure to convince Republicans in the House to pass a repeal of Obamacare, plugged the Justice with Judge Jenine Pirro show, which airs weekly on Saturday at 9pm

Trump was likely plugging an earlier plug of Pirro's show by Fox & Friends, which promised 'stunning new details' on Trump's wiretapping claims, according to Business Insider reported Oliver Darcy

Pirro denied on the air that she spoke with the president before the show. Nonetheless, her anti-Ryan rant could fuel speculation that Trump is asking his close associates who appear on the sympathetic Fox News channel to make statements that reflect the president's thinking.

Publicly, Trump refused to blame Ryan for the failure of the American Health Care Act.

The president praised the House speaker for 'working very, very hard.'

But privately aides to the president did blame Ryan, according to Bloomberg.

Trump's motorcade was seen driving down Pennsylvania Avenue in Washington on Saturday night

The president was apparently headed to the Trump International Hotel (seen on the right), where he was set to have dinner

Trump's tweet plugging Pirro's show on Saturday was unusual given that Trump on Saturday tweeted about what he believes is the imminent 'explosion' of Obamacare.

But a reporter for Business Insider noted that Trump was likely plugging an earlier plug of Pirro's show by Fox & Friends, which promised 'stunning new details' on Trump's wiretapping claims.

Trump has often cited Fox News and its commentators as his preferred sources of information - most famously when his White House press secretary, Sean Spicer, noted that Judge Andrew Napolitano claimed that British intelligence helped Obama spy on Trump.

That claim has been denied, and Fox News acknowledged it had no information to support Napolitano's claim. Napolitano was pulled off the air by the network.

Pirro is a former judge and district attorney of Westchester County, New York.

She also made unsuccessful bids to run for the Senate and New York state attorney general as a Republican.

Pirro (seen left at Trump Tower on November 17) is an avid supporter of Trump (right) and was rumored to be in line for a cabinet position during the transition. Trump is apparently hoping that Pirro will unearth revelations to support claims that he was spied on by Barack Obama

Pirro is an avid supporter of Trump and was rumored to be in line for a cabinet position during the transition.

Trump may have been hoping that Pirro would unearth new revelations to support claims that he was spied on by the Obama administration.

The president initially made the allegation on March 4, when he tweeted: 'Terrible! Just found out that Obama had my 'wires tapped' in Trump Tower just before the victory. Nothing found. This is McCarthyism!'

Thus far, the president has provided no evidence to substantiate the allegation, which is explosive given that it is illegal for a sitting president to order a wiretap on a US citizen.

Thus far, both Republican and Democratic lawmakers say there is no evidence to support the claim.

The FBI and both current and former heads of US intelligence also say the allegation has no merit.

But Trump and his supporters seized on a revelation by House Intelligence Committee Chair Devin Nunes, a California Republican, who said earlier this week that the Obama administration may have 'incidentally' collected communications by Trump team members as part of a legal investigation.

But Nunes reversed himself on Friday, according to NBC News, saying that he is not certain that Trump and his aides were 'monitored' by US intelligence.

Nunes has not given specific evidence to support his earlier claim.