The State of Trump's Union is a weekly series airing on The Last Word in the run-up to the US election in November.

We'll be talking to a variety of people with informed views about the issues dividing and uniting the United States, where the country is politically, socially and economically, the dangers it's facing, where power lies and how it is used.

This time we speak to American journalist Bob Woodward, author of two major books about Donald Trump, Fear and Rage.

His research for Rage involved 18 separate interviews with Trump, who also granted him access to top officials inside the White House.

He talked to Matt about what he makes of Trump's mental acuity and his response to the coronavirus pandemic, and gave his thoughts on America's future.