More than half of all leave voters are now planning to vote for Boris Johnson
The Conservatives have extended their lead over Labour as pro-Brexit voters return to the party, according to the latest Opinium poll for the Observer.
Despite a week of political chaos that has seen Boris Johnson purge the party of 21 MPs who oppose his plans, the Tories recorded a 10-point lead over Labour.
Read More Tories extend lead over Labour to 10% despite chaotic week