DAVID CAMERON dropped his guard yesterday, letting slip that he was “delighted” to be slashing tax credits for poor people in work.

The millionaire Prime Minister made the telling comment under pressure from Jeremy Corbyn at Prime Minister’s questions.

Labour’s leader had quoted Tory MP Heidi Allen, who on Tuesday night used her maiden speech to argue that “too many people will be adversely affected” by the cuts — before voting for them anyway.