Two Reform UK officials have stepped down, and the party has launched an investigation - after footage was broadcast on this programme indicating that they broke the law on political donations.
Undercover filming showed James Orr and Dan Jukes appearing to try to bypass election law barring donations from overseas.
The Liberal Democrats and Labour have reported the actions to the police.
Mr Jukes said he had been the victim of "entrapment" - while Mr Orr said he would co-operate fully with the party's investigation. Reform have denied wrongdoing.
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