John Bolton, a former national security adviser and a prominent critic of President Donald Trump, is expected to plead guilty in a US case involving the mishandling of classified documents, according to reports citing CNN. He faces a fine of about US$2.25 million, the outlets say.

The case centers on allegations that Bolton retained or handled government documents that were classified without appropriate authorization. The reports indicate Bolton plans to enter a guilty plea, which would resolve the matter without a trial.

Bolton is a well-known political figure in Washington and has been outspoken about Trump-related policies, but the reported court proceedings focus specifically on his conduct regarding classified materials. If the plea proceeds as expected, it would mark a significant development in the broader set of US legal actions involving classified documents handled outside required procedures.