Tom Watson MP on 'embarrassing' betting machine vote
6 December 2013 Last updated at 13:38 GMT
An MP who had pressed the prime minister at PMQs for action over fixed-odd betting machines managed to vote the wrong way in Parliament.
Tom Watson explained to Andrew Neil on the Daily Politics that he "made a mistake, an embarrassing and humiliating one."
The Black Country MP said it was an unusual vote, held through a ballot, but he "no idea" what he was thinking when voting against his wishes, and backed the government.
He said MPs' had turned a blind eye to the issue, but were making an issue over the machines where people can bet up to £100 an hour.