noun
political organization
Refers to any organized group with political aims, such as a party, movement, or association.
彼は新しい政治組織を立ち上げた。
He launched a new political organization.
政党 specifically means 'political party', while 政治組織 is a broader term that can include parties, movements, and other politically oriented groups.
Compound of 政治 (politics) and 組織 (organization).