“政治风险”常见的英文表达是 political risk。
例句：
Companies operating overseas need to carefully assess the political risk in each target market.（在海外运营的公司需要仔细评估每个目标市场的政治风险。）
The investment project was abandoned due to the high political risk in that region.（由于该地区政治风险较高，这个投资项目被放弃了。）