連れん立りつ与よ党とう

Meanings

1

ruling coalition party

Refers to a political party that is part of the ruling coalition government. Used in news and political contexts.

与よ党とう
与党 means 'ruling party' in general, while 連立与党 specifically refers to a party within a ruling coalition.
連れん立りつ政せい権けん
連立政権 is the coalition government itself, whereas 連立与党 refers to the individual parties that make up that government.

Compound of 連立 (coalition) and 与党 (ruling party).