EU row: Cameron has 'low opinion of British people'

Work and Pensions Secretary Iain Duncan Smith has accused the Prime Minister of having "a low opinion of the British people" by downplaying the UK's prospects if it left the EU.

It comes after a Sunday newspaper column in which David Cameron accused MPs backing an EU exit of wanting to take "the gamble of the century" with the country's future.

Amid rising tensions between the pro- and anti-Brexit camps, Mr Cameron has reportedly been threatened with a challenge to his leadership unless he tones down attacks on MPs backing the "leave" campaign.