Donald Trump and his Democratic challenger, Joe Biden, are set to lock horns in their first presidential debate.
The hunt begins for the rarest of beasts – the undecided American voter.
Trump and Biden will both be addressing them, but the conversations could be very separate.
Expect the blows to be low, and personal, and the mud to fly. But can any of this shift the dial? Will 90 minutes of prime-time entertainment translate into electoral gains?
David Grossman reports from Ohio ahead of the first TV debate of the 2020 US Election.