The White House issued a furious denial after Mr Comey's notes detailed Mr Trump's request.
Mr Trump himself said he had "an absolute right" as president to share "facts pertaining to terrorism" and airline safety with Russian Federation.
"And I'm sure we are going to want to hear from Mr. Comey about why, if this happens as he allegedly describes, why didn't he take action at the time", Ryan told reporters during a press conference.
Turkish president Recep Tayyip Erdogan met with U.S. President Donald Trump at the White House today.
An embattled Donald Trump complained on Wednesday that no other USA leader had been treated "more unfairly", as top Republican lawmakers demanded the facts on the swirling scandals convulsing his presidency and rattling world markets.
Asked what he thinks of the Trump presidency, Putin said it's up to the American people to judge and his performance can be rated "only when he's allowed to work at full capacity", implying that someone is hampering Trump's efforts.
GOP lawmakers have been turning down requests by major TV networks to appear on-air and respond to news that President Donald Trump reportedly asked then-FBI Director James Comey to shut down the investigation into former National Security Adviser Michael Flynn. The West Michigan libertarian firebrand is one of two House Republicans supporting Democratic legislation to form an independent commission to investigate allegations into Russian Federation and its reach in the US presidential election.
"We can't deal with speculation and innuendo and there's clearly a lot of politics in play", Ryan said.
He said that democracy was at risk over the sacking of FBI Director James Comey because he was investigating the president.More news: ICJ verdict in Kulbhushan case today
McCain overheard by reporters saying on Tuesday that Trump's scandals are "reaching the point where it's of Watergate size and scale".
Senate Majority Leader Mitch McConnell said in a Bloomberg Television interview on Tuesday that Republicans desire "less drama" from the White House.
But now we have a new allegation: There may be memos to corroborate that Trump asked Comey to terminate the Flynn investigation. That was followed by a controversial meeting between Trump and high-profile Russian officials. The op-ed also called on American politicians to recognize Turkey as "vital to U.S. interests", and he attacked President Obama for keeping the country at "arm's length".
Russia, despite recent Republican efforts to whitewash its reputation, is not a USA ally.
Perhaps shaken by the gravity of recent developments, several congressional panels have demanded that the Federal Bureau of Investigation and White House hand over records related to Comey, who has been called upon to testify before both the Senate Intelligence Committee and the House Government Oversight Committee. Trump later fired Comey.
Both allegations fueled calls for a special prosecutor to investigate Trump's ties to Russian Federation and even raised questions about whether he could face impeachment proceedings. "The White House has put out a statement very clearly with our account", he said.
The Washington Post broke the news Monday that Trump provided Russia's foreign minister and ambassador with highly classified information about potential terror threats from the Islamic State of Iraq and Syria. "There was so much bullish sentiment behind Trump's economic policies, but now that he may not even be around to execute them, investors are scrambling to get out", Madden said.
On hearing of Mueller's appointment from White House Counsel Don McGahn, Trump assembled his senior aides in the Oval Office and gave them a pep talk, casting the probe as an opportunity to refocus on his agenda, a senior White House official said.