Arlene Foster questions existence of letter at centre of DUP coup The letter was apparently signed by 22 people First Minister Arlene Foster arriving at the Strand Centre Cinema in East Belfast (Image: Liam McBurney/PA) Want the biggest politics stories sent to you every week? Simply sign up here and we'll do the restInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice Outgoing DUP leader Arlene Foster has questioned the existence of a letter at the centre of an internal party coup against her.