The broadcaster is seeking subpoenas to force Mr Trump's eldest son Donald Jr, his daughter Ivanka and his son-in-law Jared Kushner to testify in the case.

The court needs to allow them to be subpoenaed through “alternative” means because of their Secret Service protection, the BBC argued.

Network wants to serve Jared Kushner, Ivanka Trump and Donald Trump Jr after president sues over January 6 documentary