Boris Johnson could face charges in a magistrates’ court in the middle of the Conservative leadership contest after a judge gave the go-ahead to a private prosecution against him.

A campaigner brought a case of misconduct in public office against Mr Johnson, based on claims that he lied to the public during the EU referendum campaign.

Allies of the former foreign secretary say the case is “politically motivated” and an “abuse of process”.

In the meantime, the field of candidates for the Tory leadership is growing.

Boris Johnson to appear in court over claims he lied in Brexit campaign