She said it's important to hear direct testimony from Comey "that would describe the context, the tone of voice the president used, and the actual words".
Farenthold says Comey would have been duty-bound to report to the Justice Department any command to stop the investigation.
The President has the utmost respect for the law enforcement agencies, and all investigations, the White House said, adding that this is not a truthful or accurate portrayal of the conversation between the President and Comey. "Quit investigating, damn it'".
Meanwhile, House Democrats called for a "fully independent" commission to investigate Trump's alleged ties to Russian Federation, arguing their Republican counterparts have not been proactive in investigating the allegations.
FILE - In this May 8, 2017, file photo, then-FBI Director James Comey speaks to the Anti-Defamation League National Leadership Summit in Washington.
He said he would give Comey and the Federal Bureau of Investigation 72 hours to produce memos related to the alleged incident, "and if they're not produced we should subpoena them, same thing with the White House".
"Personally, just from what I know right now, it's being made a bigger deal than what it is", said Rep. Barry Loudermilk, R-Georgia, who said that the president has not committed an obstruction of justice. The letter is expected Tuesday night.
The president has broad powers to declassify secret material, experts agree.
The New York Times, citing a memo written by Comey, reported that during a February meeting in the Oval Office, Trump said, "He is a good guy".More news: Malaika Arora and Arbaaz Khan divorced after 18-years of marriage
More news: Snap plunges after 1Q report as Facebook's shadow looms
More news: Sheriff: At least 20 injured when tornado hits trailer park
Asked about the Tuesday reports about Comey, Ryan repeatedly said that Congress will continue to gather facts and keep at its existing investigations while going about its regular policy business.
John McCain, chair of the Senate Armed Services committee, said late Tuesday that the developments had reached "Watergate size and scale". We don't even have Jim Comey authenticating the memo.
Israel was the source of the classified intelligence President Donald Trump allegedly disclosed to Russian senior officials during a meeting at the White House last week, according to a new report by The New York Times.
The dollar's decline followed an ugly trading session in the USA on Tuesday.
They called on the administration "to provide records of interactions with former Director Comey, including any audio recordings". Confidence in Trump's ability to strengthen the USA economy also took a hit, with the US dollar dropping to 0.89 of a euro.
Comey's memos could be valuable in any obstruction investigation.
Mitch McConnell, the Republican leader of the Senate, said simply, "It would be helpful to have less drama emanating from the White House".