It’s Manafort 2.0. Literally nothing to do with “collusion”. They’re searching for crimes to charge those close to Trump with in the hopes that they implicate him in some kind of crime. Sad!
		
		
	 
You do realize that Mueller isn't really going for "collusion" on Trump, right? And even if he was, there's already ample proof of that. A whole lot of crazy right wing people have this idea and keep focusing on it when there are, literally, multiple crimes in open site. Just a basic list of what Mueller is investigating on Trump that he has either done or conspired to do:
Election Fraud 
Wire Fraud 
Bribery 
Bank Fraud 
Computer Crimes (Theft) 
Computer Crimes (Espionage) 
Extortion 
Identity Theft 
Obstruction Hindering Apprehension/Prosecution Witness Tampering 
Perjury 
Lying to Congress/Making False Statements 
RICO 
Money Laundering 
Tax Evasion
Conspiracy (Attempted) 
FARA Nonregistration
We, literally, have seen him do several of these, they are on his damn twitter after all. 
Despite the fact people think Mueller is taking too long (not true compared to other investigations) or has no evidence so far (hilarious to think considering the please, indictments, etc.) he is merely taking his time because he realizes just how deep this goes and wants to get as many as possible. 
This is Al Capone deciding to be president. If Al Capone was an idiot, lazy, and not a Patriot. They'll get him on several obvious things, assuming people don't flip on him like many already are, and then the entire thing will get blown open and his cult and the people he duped will lose their minds.