scotland can best be described as having a multi-party system. in the scottish parliament, the centre-left pro-independence scottish national party is the party which forms the devolved government; it currently holds a plurality of seats in the parliament (62 out of 129). opposition parties include: the scottish conservative party (centre-right, conservative), scottish labour party (centre-left, social democratic), the scottish liberal democrats (centrist, social liberal), and the scottish green party (centre-left to left-wing, green). elections are held once every five years, with 73 members being elected to represent constituencies, and the remaining 56 elected via a system of proportional representation. at westminster, scotland is represented by 47 mps from the scottish national party, 6 from the conservative party, 1 from the labour party and 4 from the liberal democrats.