Also, isn't insider trading the whole point of prediction markets? They were originally conceptualized as information aggregators.
What people are looking for is anti-corruption enforcement not market regulation. The problem isn’t that the admin is using advanced knowledge, all commodities trading involves that, it’s that the officials have an obligation to the public as part of their governmental service.
Of course this admin _also_ gutted the anti-corruption offices in the government along with the market regulators.
If someone has news they want to get out they can just use the media.