Kemi Badenoch today warned it would be 'very bad' for Britain if Nigel Farage became prime minister.
The Tory leader accused her Reform UK rival of saying 'whatever he wants in order to get into power' and said he would 'bankrupt' the country if he enters Downing Street.
She also claimed Mr Farage was 'making the same mistake' as Labour's Sir Keir Starmer by making promises he 'can't deliver'.
Mrs Badenoch took a swipe at Mr Farage - who was criticised for taking a holiday abroad while Parliament was sitting last week - as she responded to reports that he will commit to scrapping the two-child benefit cap.
The Reform leader is expected to make the announcement in an upcoming speech as he attempts to broaden his party's appeal to left-wing voters.
