The Tory leader says Labour's negotiations could cost the UK billions; the prime minister questions whether Badenoch has been "properly briefed" on UK security.

Keir Starmer and Kemi Badenoch will clash at the Despatch box today when they go head-to-head at Prime Minister's Questions. The Tory leader will have lots to take aim at during a week where Sir Keir has cosied up to the EU in an attempt to strengthen ties with the bloc.