Federal prosecutors at a court hearing on Monday said that they are “likely” to bring additional charges against two associates of Rudy GiulianiRudy GiulianiNunes: 'Sickening' that Schiff obtained his phone records Meadows: 'I don't see a single Republican defecting on impeachment' Inventing the 'Deep State' and draining the real one MORE who were indicted in October on campaign finance charges, according to Bloomberg.

Prosecutors made the comment at a Manhattan hearing but did not elaborate on what new charges might be brought against Lev Parnas and Igor Fruman.

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Parnas and Fruman, who are charged with illegally directing foreign money to U.S. political campaigns, have pleaded not guilty. They reportedly aided Giuliani’s efforts to find incriminating evidence against former Vice President Joe BidenJoe BidenBiden: Buttigieg 'doesn't have significant black support even in his own city' Biden: 'I'd add' Warren to my list of potential VP picks How can top Democrats run the economy with no business skill? MORE and his son Hunter Biden.

The indictment claims the two men were also pivotal in a pressure campaign to recall then-U.S. Ambassador to Ukraine Marie YovanovitchMarie YovanovitchNunes: 'Sickening' that Schiff obtained his phone records Inventing the 'Deep State' and draining the real one Washington state Democrat announces retirement MORE.

Since the indictment, prosecutors have reportedly issued subpoenas seeking information on a company co-founded by Parnas that paid Giuliani for legal and business advice as well as information on America First Action, the pro-Trump organization to which Parnas and Fruman are accused of funneling money.

Parnas is also reportedly prepared to testify that House Intelligence Committee ranking member Devin NunesDevin Gerald NunesNunes: 'Sickening' that Schiff obtained his phone records Trump's exceptionalism: No president has so disrespected our exceptional institutions Schiff: Blowback to obtaining phone records 'has only come from the far right' MORE (R-Calif.) canceled a planned trip to Ukraine to obtain information on the Bidens to avoid alerting Chairman Adam SchiffAdam Bennett SchiffLawmakers prep ahead of impeachment hearing Top Republican: Democrats' weekend document dump shows impeachment inquiry is a 'farce' Nunes: 'Sickening' that Schiff obtained his phone records MORE (D-Calif.).