Well at least four of our elected representatives have decided to protect their financial well being ahead of their duty to the nation. Politicians suck!
Given that one term in the US Congress is enough to make a millionaire (or greater) of everyone elected to the office, I doubt the problem is restricted to four. In this particular case, however, while I am aware of the allegations, I haven't seen anything within the actual texts of the articles reporting on it that demonstrates that the sale of stock was made on behalf of secret knowledge, given that there were public reports of the virus prior to that time. I think this is just a distraction.