Eighteen-count indictment of former Trump adviser handed down by federal grand jury in Maryland as US president calls ex-ally a ‘bad guy’

Hello and welcome to the US politics live blog. I’m Tom Ambrose and I will be bringing you all the latest news lines over the next few hours.

We start with the news that the justice department has filed federal charges against John Bolton, the former national security adviser to Donald Trump who turned into one of his biggest critics, accusing him of transmitting and retaining highly classified information under the Espionage Act.

The 18-count indictment was handed up by a grand jury in federal district court in Maryland on Thursday. Bolton has been charged with sending diary entries to two unnamed individuals about his day-to-day activities when he was national security adviser, many of which contained highly classified information.

The indictment marked the third time in recent weeks the justice department has secured criminal charges against one of Trump’s critics. In response to a question about the charges, Trump told reporters on Thursday that he was not aware of them but that Bolton was a “bad guy”.