Hunter Biden, the son of former Vice President Joe Biden, has been under scrutiny for his business dealings in Ukraine and China. Recently, President Trump's personal attorney, Rudy Giuliani, has alleged that Hunter Biden's work for a Ukrainian gas company, Burisma, while his father was in office, constituted a conflict of interest. This has led to calls for an investigation and potential subpoenas from Congress. However, it is unclear whether Hunter Biden can subpoena the Trump Department of Justice (DOJ) himself. In general, a subpoena is a legal document issued by a court or other authority, commanding a person to appear and give testimony or produce evidence. In the context of Congress, a subpoena is issued by a committee or subcommittee as part of an investigation. In Hunter Biden's case, it is more likely that Congress would issue a subpoena, not him. Congress has the power to investigate and gather evidence as part of its constitutional duty to oversee the executive ...