Lawyers for Hunter Biden, the son of Joe Biden, have issued subpoena requests against Donald Trump in an effort to show the former US president applied political pressure to high-ranking officials to push for a criminal investigation into his affairs.
The move, revealed in court papers filed on Wednesday, comes as Hunter Biden fights charges of illegal gun ownership in a case that threatens to reach a climax at the height of the 2024 presidential election campaign, in which Joe Biden and Trump are likely to be the two main candidates.