 The party's headquarters in Cardiff organise the party's election campaigns at all levels of government (Community Councils, Unitary Authorities, the Senedd, Westminster and European Parliament), support the CLPs and branches in membership matters and perform secretarial functions to the National Assembly Labour Party (NALP) and the party's policy-making process.They also organise the annual conference (the sovereign decision-making body of the party), provide legal and constitutional advice, and arbitrate certain disciplinary matters.Keir Hardie, the first leader of the Independent Labour Party, was elected as member for Merthyr Tydfil in 1900, and when the National Union of Mineworkers affiliated to the party in 1908, their four sponsored Welsh MPs became Labour MPs.