Trojan horse
📖 Definitions
noun
Something or someone placed in order to subvert from within.
💬 Usage Examples
“David Uhlmann, the former Justice Department official, warned, ... ‘the Kochs are using criminal-justice reform as a Trojan horse for their efforts to weaken environmental, health, and safety regulations.’” Jane Mayer; New Koch; The New Yorker; Jan 25, 2016.