Many of these trades aren't really inside information, like buying stock in the vaccine companies shortly before government deals to bulk-purchase vaccines. Any careful observer would know the rough timing of those deals.

Just the same, Congresspeople should be restricted from dealing in individual stocks and making trades that are going to look expensive. They have to put their money somewhere, but they could be restricted to index funds.

Or they could have trading windows, like corporate execs do, limiting their ability to profit on insider knowledge.