Senior White House aides pushed back on a claim Monday that President Donald Trump is considering directing the deputy attorney general to fire Special Counsel Robert Mueller, who is now leading the investigation into Russian interference in the 2016 presidential election.
"I think he's considering perhaps terminating the special counsel", Mr Ruddy said in an interview with Judy Woodruff of PBS NewsHour. "I think he is weighing that option".
Under Justice Department regulations, firing Mueller would have to be done by Attorney General Jeff Sessions' deputy, Rod Rosenstein, not the president - though those regulations could theoretically be set aside.
Mueller is leading the investigation into Russia's meddling in the 2016 election and potential ties between Moscow and Trump's presidential campaign.
Rosenstein's letter critical of Comey's handling of the Hillary Clinton email server investigation served as the Trump White House's first reasoning for firing Comey - though Trump later undercut that explanation by saying he fired Comey in hopes of ending the Russian Federation probe.
Lawyer Jay Sekulow, a member of Mr Trump's legal team, has also refused to rule out Mr Mueller's possible sacking.
Adam Schiff, who is the top Democrat on the House Intelligence Committee, was quick to respond to the report.
Ruddy told PBS he thinks firing Mueller "would be a very significant mistake, even though I don't think there's a justification. for a special counsel".
After Comey's testimony, Trump said he had been vindicated because his former FBI director confirmed telling Trump on three occasions that he was not under investigation.
Tuesday morning, in a statement to CNN, Ruddy disputed Spicer's comments. Given that as Federal Bureau of Investigation director Comey was overseeing the probe into Russian Federation, and its possible collusion with the Trump team, the firing has led to questions about potential obstruction of justice. She asked about news reports suggesting that President Donald Trump was already thinking about "terminating" Robert Mueller from his position as special counsel.
But Ruddy outlined what seems to be growing talk from Trump circles raising concerns about Mueller.
Rosenstein says the attorney general would be the only one who could fire Mueller. He said that if they dismissed Mueller, then they would instantly "re-establish independent counsel and appoint Mueller". "Don't waste time trying to undermine one of your few allies".
"The FBI leak of information regarding the President is outrageous, inexcusable and illegal", a spokesman for Trump's legal team, Mark Corallo, said.