I think the best thing we can do now is find someone who will represent the people, not the .gov, and push to get that person in. And unfortunately, senators cannot be impeached. The only way to be removed is by a 2/3 vote from other legislative members.
Article I, Section 5, Clause 2
"Each House may determine the rules of its proceedings, punish its members for disorderly behavior, and, with the concurrence of two thirds, expel a member."