Donald Trump is heading back to the White House.

Together we can truly make America great again.

We are in for an unpredictable but fascinating four years.

And we're going to be following every twist and turn for the first 100 days.

We'll be bringing you the latest updates and analysis first thing every morning.

So join me, James Mackey.

Me, Martha Kalnick.

And me, Mark Stone, for Trump 100 every weekday at 6am, wherever you get your podcast.

On November 1st, 2006, two Russian agents released a deadly nuclear poison

in the bar of the five-star Millennium Hotel in London's Mayfair.

The agents were on a mission to kill former KGB spy Alexander Litvinenko,

their weapon of choice, Polonium 210, a highly radioactive substance, dropped into Litvinenko's tea.

The assassination made headlines around the world,

and changed the relationship between the UK and Russia forever.

It's the stuff of a Cold War thriller.

Clandestine rendezvous in the busy streets of central London.

But there was another man in the hotel bar that day

whose life would become intertwined with Litvinenko's

and just like his would change forever.

But when they mentioned radiation, I went,

what are you talking about?

I had a cup of coffee and I sat down this place and I played the piano and sang all night.

...