The cynical answer is that they won't unless it's the law, and Congress probably won't pass a law that prevents themselves from making money. They can claim th

The cynical answer is that they won't unless it's the law, and Congress probably won't pass a law that prevents themselves from making money. They can claim that insider trading is already illegal, so there's no need for a law like that- and then they can exploit the loopholes that exist, or just blatantly commit a crime and assume that they won't be held accountable. There's a few honest lawmakers, but there are a lot that pursued the office specifically for the advantages they receive. I highly doubt that the investigation will find enough evidence to convict Burr of anything. Unless he sent communication that he ordered certain trades as a result of a classified briefing then he's going to get off scot free. The virus was already covered by the news, and while a lot of people don't believe Burr's argument he's not going to get convicted because it's reasonable enough.