Русско-англо-русский юридический словарь

The ruling party or governing party in a democratic parliamentary system is the incumbent political party or coalition of the majority in parliament, that administers the affairs of state. (Wikipedia)

Turkey’s governing party has sparked an outcry after putting forward a bill that would pardon up to 3,000 child rapists if the perpetrator married his victim. (Telegraph)

A majority government is a government formed by a governing party that has an absolute majority of seats in the legislature or parliament in a parliamentary system. This is as opposed to a minority government, where the largest party in a legislature only has a plurality of seats. A majority government is usually assured of having its legislation passed and rarely, if ever, has to fear being defeated in parliament. (Definitions.net)