£5m cost of comeback

BORIS JOHNSON will walk away from £5million a year if he becomes PM again, says his biographer Tom Bower.

He has lined up a series of US speeches for up to £250,000 a time and signed a £1.5million deal to write his memoirs, which will be put on hold should he return to No10.

‘He was on track to earn £5 million this year but if he wins this vote, eventually the sky’s the limit,’ said Mr Bower.

A Netflix producer added: ‘If he returns to power, his value will only go up. Everyone loves a comeback story, especially American corporations.’ Mr Bower said Mr Johnson could easily match the estimated £100million Tony Blair has made since quitting No10 in 2007.