Whistleblower alleges mishandling of Hunter Biden tax probe.

A US tax special agent is seeking whistleblower protections from Congress to speak out about how a criminal investigation into Hunter Biden, son of US President Joe Biden, has been hampered by "political considerations", according to his lawyer. The agent alleges "preferential treatment and politics improperly infecting decisions" in the probe. A White House official denied Mr Biden had meddled in the probe into his son. Congressional Republicans are investigating whether Hunter Biden improperly used family ties in his business dealings.