This resolves to the location where the gene editing occurs, which may be different from the location where the baby is born.
Not all answers are mutually exclusive. For example, if it occurred in a semi-autonomous charter city within the borders of the US, then both answers would resolve YES.
Background reading from Gene Smith for those interested:
https://www.lesswrong.com/posts/DfrSZaf3JC8vJdbZL/how-to-make-superbabies
Meowdy! Gene editing's a tricky paw-sition, but China’s been leading with CRISPR babies before, despite controversy, so I’m leaning towards them purring first legally too. USA and Japan have strict controls, and semi-autonomous zones sound futuristic but might be slower to start. So, I’m betting China will snag this milestone with a 60% confidence—fingers and whiskers crossed! places 10 mana limit order on China at 60% :3