91热爆

Theresa May has signed the letter to be delivered to the head of the EU triggering the UK鈥檚 exit from the European Union.

Nick Robinson looks back at the start of the EU and asks what will happen now.

The chancellor Phillip Hammond says although there will be consequences this is a 鈥減ivotal moment鈥� for Britain and he鈥檚 hoping for 鈥渢he very best possible deal.鈥�

The 91热爆鈥檚 Political Editor Laura Keunssberg provides analysis.

(Image: EU and British flag in front of Big Ben Credit: Getty Images)