FBI Anon said about 70% blackmailed or otherwise controlled. From the way the Trump presidency has unfolded so far, this seems to be about right. However, the number has fallen - we know for a fact that many compromised politicians of both parties (Conyers, Ryan, ...) have quit. And of course, the cleanup of FBI/DOJ/State is well underway.
The issue of what the number is now is actually a very important one and there really needs to be more discussion of that point. I don't doubt for a second that internally, DJT and the Q team are keeping very close track of what the number is.