BBC News
By John Campbell
Published
He had just sealed the Brexit withdrawal deal with the EU.
At a Brussels press conference, the prime minister hailed the agreement as marking the beginning of a "very exciting" time for the UK.
"I want to stress that this is a great deal for our country, for the UK," he said.
"And what it means is that we in the UK can come out of the EU as one United Kingdom - England, Scotland, Wales, Northern Ireland, together.
"And it means we can decide our future together, we can take back control, as the phrase goes, of our money, our borders, our laws, together."