Sen. Richard Blumenthal (D-Conn.) on Wednesday responded to President Trump's criticism of him, calling for an independent probe of Trump's campaign's links to Russia.

"President Trump - Your bullying won’t silence my calls for an independent prosecutor and investigation," Blumenthal tweeted.

“Now is no time for distraction and deception. Americans want the truth uncovered and lawbreakers held accountable. Need special prosecutor. No question that an independent special prosecutor is necessary. Nothing less than integrity of our justice system at stake."

President Trump - Your bullying won’t silence my calls for an independent prosecutor and investigation. — Richard Blumenthal (@SenBlumenthal) May 10, 2017

Now is no time for distraction and deception. Americans want the truth uncovered and lawbreakers held accountable. Need special prosecutor. — Richard Blumenthal (@SenBlumenthal) May 10, 2017

No question that an independent special prosecutor is necessary. Nothing less than integrity of our justice system at stake. — Richard Blumenthal (@SenBlumenthal) May 10, 2017

Blumenthal faced Trump's wrath earlier Wednesday after ripping Trump’s firing of FBI Director James Comey.

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“What we have now is really a looming constitutional crisis that is deadly serious,” he said on CNN’s “New Day.”

Trump in response called for Blumenthal to face an investigation over a 2010 campaign controversy about military service.

“For years, as a pol in Connecticut, Blumenthal would talk of his great bravery and conquests in Vietnam – except he was never there,” Trump tweeted. “When caught, he cried like a baby and begged for forgiveness and now he is judge & jury. He should be the one who is investigated for his acts.”

Blumenthal admitted during his 2010 Senate campaign that he said he served "in" the Vietnam War when he should have said he served during the war, as a reservist and not overseas.

Trump on Wednesday lashed out at Democrats who criticized his firing of Comey, accusing them of hypocrisy for criticizing the FBI director's handling of the Hillary Clinton Hillary Diane Rodham ClintonREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails County GOP in Minnesota shares image comparing Sanders to Hitler Holder: 'Time to make the Electoral College a vestige of the past' MORE investigation before the firing.