Connecticut Republican Robert Hyde also alleged that Lev Parnas planned to have Rudy Giuliani kidnapped in Ukraine in order to blackmail the president.
The ABC host mocked the reaction to claims made by Rudy Giuliani's aide that President Trump knew about pressure on Ukraine to dig dirt on the Bidens.
The Democratic congresswoman said the president exhibited "mom, yell at my teacher" energy in a Thursday tweet.
President Donald Trump has maintained that he does not know Lev Parnas, despite being pictured in photos with him.
Lev Parnas told MSNBC'S Rachel Maddow Thursday that President Donald Trump attempted to fire then-Ambassador to Ukraine Marie Yovanovitch multiple times, but it didn't work. "It was becoming comical," Parnas said.
In the second installment of his interview with MSNBC's Rachel Maddow, Lev Parnas compared President Donald Trump to a "cult leader," saying "There's a lot of Republicans that would go against [Trump]."
"He's as critical a witness as anybody," former Watergate prosecutor Nick Akerman told Newsweek.
"I don't know Lev Parnas. What documents?" Conway said during a CNN interview.
The GAO report that said withholding money from Ukraine violated the law came the same day that the impeachment trial against President Donald Trump will officially begin.
The Connecticut Republican told Eric Bolling that his texts to Lev Parnas were "just colorful" and stressed that he was a "little landscaper."
The GOP congressman said he "just didn't know the name" when call logs released in December revealed that he had been on a call with Parnas.
"Mr. Barr had to have known everything," Parnas said.
Lev Parnas told Rachel Maddow that the only reason former U.S. ambassador Marie Yovanovitch was removed from office was that she stood in the way of the Biden investigation. Parnas also said that Robert Hyde, suspected of keeping tabs on Yovanovitch's location, was "drunk all the time."
"Next to Donald Trump himself, this could be the most important witness that the Senate could call to determine what the actual facts are," a former Watergate prosecutor said.
"In pursuing the case of the downed plane, justice will be implemented irrespective of any circumstances," Iran's judiciary chief said.
Canada, Ukraine and the U.S. have all demanded that Tehran pay compensation to the families of those killed when Ukraine International Airlines flight 752 was shot down last week.
Burisma Holdings, the Ukrainian gas company for whom Hunter Biden once worked, has been hacked by the same Russian intelligence agency that stole emails regarding Hillary Clinton's 2016 presidential campaign, according to a report in The New York Times.
Thousands took to the street, calling on Supreme Leader Ali Khamenei to resign.
All 176 passengers and crew on board the Ukrainian Airlines flight died in the crash.
Iran blamed "human error" in the shooting down of a Ukrainian Boeing 737-800 jetliner that killed all 176 aboard. Iranian spokespeople previously blamed a fire that started in the jet's engine.
Rep. Jackie Speier (D-Calif.) claimed during a CNN interview on Thursday that the "collateral damage" caused by the actions of President Donald Trump could have been to blame for the deadly crash of a Ukraine jetliner on Wednesday.
Ukraine International Airlines Flight 752 is believed to have been struck by a Russia-built Tor-M1 surface-to-air missile system, known to NATO as Gauntlet, two U.S. and one Iraqi official told Newsweek.
All 176 passengers and crew of a Ukraine International Airways flight to Kiev were killed when a Boeing plane crashed near Tehran.
"I can't imagine the sadness their families have to face," a fellow student at the University of Alberta said.
All 176 people aboard the flight are believed to have been killed in the incident, which occurred soon after the aircraft left Tehran's international airport for Kiev.
The Boeing 737 was bound for Ukraine and was reported to be carrying 176 passengers and crew.
The Senate minority leader said he wants the Senate and the American people to "hear all the evidence."
The president was playing golf with professional John Daly while officials were trying to set up a call to have the aid released, according to The New York Times.
The retweet prompted allegations the president directly broke federal regulations that safeguard such figures from retaliation.