evidence: Since it emerged that Arlene Foster had resigned as leader of the Democratic Unionist Party and as NI first minister, politicians on all sides have been reacting. [...] DUP peer and deputy leader Nigel Dodds said Mrs Foster had "dedicated her life to defending the union and moving Northern Ireland forward". [...] DUP MP Gregory Campbell thanked Arlene Foster on his Facebook page for her "steadfast commitment to making progress here in Northern Ireland despite the many difficulties we all faced, and will continue to face in the future".