Federal prosecutors at a court hearing on Monday said that they are “likely” to bring additional charges against two associates of Rudy GiulianiRudy GiulianiThe Hill's Morning Report - Sponsored by AdvaMed - House panel expected to approve impeachment articles Thursday Horowitz offers troubling picture of FBI's Trump campaign probe Horowitz: 'Very concerned' about FBI leaks to Giuliani 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 BidenThe Hill's Morning Report - Sponsored by AdvaMed - House panel expected to approve impeachment articles Thursday Democrats seek leverage for trial Democrats spend big to put Senate in play 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 YovanovitchThe State Department: Nonpartisan service on behalf of America Nunes: 'Sickening' that Schiff obtained his phone records Inventing the 'Deep State' and draining the real one 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 NunesHillicon Valley: Apple, Facebook defend encryption during Senate grilling | Tech legal shield makes it into trade deal | Impeachment controversy over phone records heats up | TikTok chief cancels Capitol Hill meetings The Hill's Morning Report - Sponsored by AdvaMed - Democrats to release articles of impeachment today Controversy on phone records intensifies amid impeachment MORE (R-Calif.) canceled a planned trip to Ukraine to obtain information on the Bidens to avoid alerting Chairman Adam SchiffAdam Bennett SchiffDemocrats seek leverage for trial Pence's office denies Schiff request to declassify call with Ukrainian leader Comey, Schiff to be interviewed by Fox's Chris Wallace MORE (D-Calif.).