Jeremy Corbyn was greeted at the Labour Party HQ in London with a cheering crowd after the unexpected General Election results.
The night revealed a sizeable gain for Labour, returning to a level that is higher than when the party lost power in 2010.
A celebratory Mr Corbyn said during his constituency victory speech that "politics has changed and it isn't going back into the box it was before".
Theresa May is expected to receive a frosty reception when she meets the 1922 Committee later. But what do we know about the group?
The Prime Minister appointed her former leadership rival as Environment Secretary as she confirms her new top team.
He insisted he would be backing Theresa May as leader and has warned MPs to "calm down and get behind the Prime Minister".