US midterms: The battle of the ex-presidents

Former US presidents Barack Obama and Donald Trump were parachuted into Pennsylvania as the campaign for the midterm US elections reaches a climax.

But one lone voice gained almost as much attention as Trump's booming rhetoric.

A protester was frogmarched out of the Trump rally after she tried to shout down claims the last presidential election was "stolen".

US correspondent Mark Stone managed to talk to her.