Federal Special Counsel Jack Smith is expected to resign before Donald Trump assumes the presidency, closing ongoing criminal cases against Trump. Trump had previously vowed to dismiss Smith swiftly upon taking office. Legal experts note that criminal investigations of a sitting president are generally avoided in the U.S. due to Department of Justice traditions and Supreme Court rulings on presidential immunity. Smith is managing cases related to Trump’s handling of classified documents and his involvement in the January 6 Capitol attack, with potential developments expected in the coming months.