There was some discussion of this upthread. The short answer is that there is precedent for such a plea bargain.
Since he’s charged with false statements to Congress, I doubt that Congress would pay for his defence.
Given his salary from Congress, I doubt he would qualify for legal aid.
Moderating:
I’ve created a new topic for the discussion relating to Santos’ indictment and prosecution. Let’s use that thread instead of this one, since Santos is now elected and this thread is stale for the current discussion. Thanks.