US President Donald Trump's personal lawyer has failed in a bid to keep some of his business documents secret.

The items were seized in a raid on Michael Cohen's office last week by investigators looking into his dealings with an adult film star, who says she had an affair with the president.

A judge in New York also forced Cohen to reveal another of his well-known clients.

Al Jazeera's Kristen Saloomey reports from New York, US.

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