A federal judge on Friday rejected former United States President Joe Biden's attempt to block the Trump administration from releasing to a conservative group the recordings that Biden made with a ghostwriter.

US District Judge Dabney Friedrich found that the public interest in the material outweighed whatever privacy rights Biden had, but she effectively put her ruling on hold for up to three weeks so Biden could appeal.

The recordings were obtained by special counsel Robert Hur in the course of his investigation into whether Biden improperly retained classified documents while a senator and vice president. Republicans in Congress demanded them after Hur declined to file charges against the then-president.