What happens after fake news Russia collusion tale collapses?

After today's testimony that, once again, yielded absolutely no evidence of anything illegal the dems can see that's going nowhere so they are now trying to focus on what has already been testified to as well, the imaginary interference in the investigation. Not ones to listen to the testimony if they don't like the answer they'll ask these people half a dozen times before they are forced to move on to something else. I know, they'll claim it's illegal to be Donald Trump.