President Trump has it exactly right here. Make them live up to their own bullshit. They claim collusion and obstruction. While all the time Obama knew what the Russians were doing and did nothing. Most likely to cover up what he was doing.
What they did was have an opposition research firm make a phony dossier that was used by the partisan FBI to get a FISA warrant to tape Candidate Trump and his associates. Then that information was illegally unmasked and spread out through the government in the expectation that it would be leaked. There are literally dozens of felonies in that chain of events. Of course Mueller is not going to follow up on that as he is only tasked at destroying Trump with his merry band of Democratic Donor Lawyers and left wing partisans. Trump needs to clean the swamp. Now.