evidence: Enter, once again, the Democratic Unionist Party (DUP): the conservative Northern Irish loyalists who have so often been a thorn in the side of government plans since their entry into a confidence-and-supply arrangement with the Tories in 2017. [...] Founded by the late Ian Paisley in 1971, at the height of the Northern Ireland Troubles, and now led by Arlene Foster, the DUP is the largest party in the Northern Ireland Assembly and is currently the fifth-largest party in the Commons - with ten MPs. [...] Its 2017 manifesto also included retaining the "triple lock" on pensions, cutting VAT for tourism businesses, abolishing air passenger duty and reviewing the price of ferries between Northern Ireland and Great Britain.The DUP was also the only major political group in Northern Ireland to oppose the Good Friday Agreement – before finally entering into a power-sharing government in 2007.