political intervention; political interference
Refers to the act of a government or political entity involving itself in matters, often where it may not be wanted or expected. Can be used in both neutral and negative contexts.
Foreign political interference in the election became an issue.
To protect the independence of the central bank, political intervention should be avoided.
内政干渉 specifically means 'interference in internal affairs', often used in international relations. 政治介入 is broader and can refer to any political involvement, not necessarily crossing sovereignty lines.
Compound of 政治 (politics) and 介入 (intervention).