The political party Gerry Mullan belonged to currently has how many MLAs in the Northern Ireland Assembly?
Gerry Mullan (politician): Gerry Mullan (born 24 September 1954) is a former Social Democratic and Labour Party (SDLP) politician from Northern Ireland. Social Democratic and Labour Party:  The SDLP currently has 12 MLAs in the Northern Ireland Assembly; but lost its three remaining Parliamentary seats in the 2017 general election.
12