Zac Goldsmith resigns as Tory MP over Heathrow runway decision

Backbencher Zac Goldsmith has resigned as a Tory MP in protest at the Heathrow runway decision, which he called "catastrophic". The move will trigger a by-election in his Richmond Park constituency, but the Conservative Party has said it will not put forward another candidate. Sky's Chief Political Correspondent Jon Craig said the Tories were worried about splitting the vote and the Lib Dems clinching the seat.