Sen. Richard Blumenthal (D-Conn.) said on Wednesday that the FBI's raid on former President Trump campaign chairman Paul Manafort's home directly connects Manafort to evidence of criminal wrongdoing in the ongoing investigation of alleged collusion between the Trump campaign and Russia during the 2016 presidential campaign.

"Apparently there is now no question of clear evidence connecting Paul Manafort to some criminal wrong doing," Blumenthal said in a statement.

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"This highly significant step reaffirms the reasons that I first urged the appointment of a Special Counsel with the power to execute such investigative measures and bring criminal charges and redoubles my determination to protect this investigation from political interference," he continued.

Blumenthal, who is a vocal Trump critic, made headlines this week after Trump targeted him on Twitter for his involvement in the Russia probe.

Never in U.S.history has anyone lied or defrauded voters like Senator Richard Blumenthal. He told stories about his Vietnam battles and.... — Donald J. Trump (@realDonaldTrump) August 7, 2017

...conquests, how brave he was, and it was all a lie. He cried like a baby and begged for forgiveness like a child. Now he judges collusion? — Donald J. Trump (@realDonaldTrump) August 7, 2017

Blumenthal's comments come after it was revealed that FBI agents had performed a raid at Manafort's Alexandria, Va., home last month.

The Washington Post reported the agents had a search warrant to seize materials from the home.

The developments come in what appears to be a widening probe into Russian 2016 election meddling and possible collusion with Trump campaign staff.

Special counsel Robert Mueller, who was appointed to spearhead the federal probe, has impaneled a Washington, D.C., grand jury that has the power to indict if he decides criminal charges are appropriate.