Liz Truss’s chief of staff questioned by FBI in inquiry about election bribe

Mark Fullbrook is cooperating with the FBI and denies strongly any wrongdoing

Liz Truss’s chief of staff has been interviewed by the FBI as part of an investigation into an alleged conspiracy to bribe an American politician and influence an election.

Mark Fullbrook, the prime minister’s closest adviser, was questioned as a witness in a US Department of Justice (DoJ) and FBI investigation into the matter.

In April, the FBI approached the UK’s National Crime Agency and the Metropolitan Police to help secure Mr Fullbrook’s attendance for a formal interview, The Sunday Times first reported.