I predict that none of the Senators who used their insider knowledge to dump stocks before the crash will resign or otherwise face any civil or criminal consequences for their actions.
If it was only one insider trading Senator, he or she might have resigned. If we had a different President who wasn’t even more corrupt, maybe there could be some pressure from the top. If the public wasn’t completely (and understandable) focused on a global pandemic and the related economic collapse, maybe. But we’re not living in the world of maybe. So they will get away with it.
I hope I’m wrong.