Vermont Senator Bernier Sanders is struggling to answer questions surrounding his campaign’s alleged support from recently indicted Russian nationals; deflecting questions after Robert Mueller charged thirteen foreign agents for working on behalf of the liberal lawmaker.

Sanders pushed back against the special counsel’s office court filings that showed Russian-based operatives were actively working to support his candidacy; sowing chaos between his campaign and his Democrat rival Hillary Clinton during the party’s nomination process.

Mueller’s indictment alleges that thirteen Russian nationals “engaged in operations […] to denigrate other candidates such as Ted Cruz and Marco Rubio, and to support Bernie Sanders.”

Last weekend, the Senator from Vermont admitted that a staffer was aware of Russian election meddling during the 2016 race for the White House.

“A guy who was on my staff … checked it out and he went to the Clinton campaign, and he said, ‘You know what? I think these guys are Russians,’” Sanders told NBC’s Meet the Press.

The Clinton campaign denies ever receiving information from the Sanders’ team regarding Russian interference, saying “no one” from the Senator’s camp “ever reached out.”