USA correspondent Susan Milligan

US correspondent Susan Milligan tries to untangle what's happening with President Trump, would-be Democratic nominee Joe Biden and his son Hunter and Ukraine. It started with a whistle-blower complaint, and includes the claim President Trump reportedly told Ukrainian president Zelensky that he wouldn't get promised military aid unless he dug up damaging information about Hunter Biden. It's raised questions of whether the president was colluding with Ukraine over the 2020 election, although Trump and his lawyer Rudy Giuliani says he's done nothing wrong.