US President Joe Biden is in Belfast today to mark 25 years since the Good Friday peace agreement was signed. Liz O'Donnell, one of the Irish government's negotiators, tells us about the final stages of the talks, and what she sees as the deal's unrealised potential. We also get the view of the leader of the opposition in the Stormont Assembly, Matthew O'Toole of the SDLP. He says Biden won't be able to "flick a switch" and restore power-sharing, but the continued US interest in Northern Ireland is welcome. Ellen Milligan reports from Belfast, and our reporter Eamon Farhat brings us details of the latest strike by junior doctors. Also in the show, hosts Yuan Potts, Lizzy Burden and Stephen Carroll discuss the latest polling which shows a narrowing of Labour's lead over the Conservatives.