Warner said the USA government still does not know what took place in Trump's meetings with Putin, including another in Helsinki last summer where Trump appeared to embrace Putin's claim, rejected by United States intelligence, that his country had nothing to do with an interference effort in the 2016 election.
In the string of tweets on Saturday morning, Trump accused Comey of "rigging" and "botching" the investigation into Hillary Clinton's emails, and said that his "poor leadership" of the Clinton case put the FBI "in complete turmoil".
I think Trump is correct on all of those particulars.
"That comes back to the question, again, of why the president wanted to do this?" she asked.
I have observed before that when I talk to people who detest the president, the first thing they almost always mention is his tweets.
The Times reported that FBI agents and some top officials became suspicious of Trump's ties to Russian Federation during the 2016 presidential campaign but didn't open an investigation at that time because they weren't sure how to approach such a sensitive and important probe, according to the unnamed officials.
According to the newspaper, law enforcement officials were so concerned they began investigating whether the President was working on behalf of Russian Federation against U.S. interests.
One day after the New York Times made the claim, Fox New's Jeanine Pirro posed the question to Trump in an interview on Saturday night, asking: 'Are you now or have you ever worked for Russia, Mr. President?'
In a flurry of tweets Saturday morning, Trump slammed Comey, arguing that his firing of the former Federal Bureau of Investigation director "was a great day for America" and accused him of being a "crooked cop" protected by Mueller.
"FBI senior leadership could not accept Comey was sacked for cause and the president had the constitutional authority to terminate Comey".
U.S. Special Counsel Robert Mueller took over the investigation into Trump days after the FBI opened it, as he examined allegations of Russian election interference, the Times reported.
At the same time that the FBI opened a probe into Trump for possible obstruction of justice after he fired FBI Director James Comey, counterintelligence agents were investigating why Trump was acting in ways that seemed to benefit Russian Federation, a source familiar with the matter told CNN on Friday.
"I would. I don't care", Trump said when asked if he would divulge details from the meetings.
In the tweets, Trump insulted former FBI Director Comey, and claimed that the probe was a partisan bid to discredit him.
"Unlike president Obama, who let Russia and other foreign adversaries push America around, President Trump has actually been tough on Russia", Sanders said.
Mueller has indicted 33 people in the probe and convicted some of the president's close associates.
Trump's ex-national security advisor, Michael Flynn, has pleaded guilty to lying to investigators about his Moscow ties.
Cohen will testify publicly before a House committee next month.