Ros Atkins on... Why Hunter Biden is in trouble

Hunter Biden, the son of US President Joe Biden, has entered a not guilty plea to charges of illegally owning a handgun at a Delaware courthouse.

Prosecutors allege that Mr Biden, 53, lied about his drug use on application forms when he purchased the weapon in 2018.

The BBC's analysis editor Ros Atkins looks at the first ever criminal prosecution of a sitting US president's child.

Video produced by Catherine Karelli