A consulting firm linked to Hunter Biden that did work for Burisma, the Ukrainian energy company that paid the Biden scion $83,000 a month to sit on its board, is under investigation by the Justice Department, according to a report on Thursday. Blue Star Strategies is being probed for potential illegal lobbying after it took on Burisma as a client while Hunter was on its board, Politico reported. The US Attorney’s Office in Delaware, which is already investigating Hunter for possible “tax” violations, is working with lawyers in the Justice Department’s National Security Division in Washington, DC, the report said. One aspect of the investigation is whether Blue Star failed to comply with the Foreign Agents Registration Act (FARA) that requires Americans to disclose lobbying work for foreign entities. The report noted that there is no indication that Hunter is a target in the investigation, and Karen Tramontano, one of the firm’s co-founders, testified that the president’s son did not direct any of Blue Star’s work on behalf of Burisma.