This will allow Mueller to go after Clinton and the DNC now for similar ties and acts, but even further/ worse. Serious charges to Manafort=Serious charges to Holden, Clinton and the rest involved in money laundering and Conspiracy against the US and worse colluding with Russia and conspiracy to spy on political opponents using that fake info and cheating the election through colluding with Ukraine and Mexico will get lost in the maze of Clinton criminal activity.
Mueller is trying to cover his own collusion on UraniumOne
Yes, that's why I said in the very beginning he was required to recuse himself, because no matter how well he handles this investigation there can only be questions to his integrity if the DNC is not brought up for their many obvious collusions with foreign countries (Russia, Ukraine, Mexico) and worse.
He took an unecessary risk and chance by not following the law in recusing himself.
It's the law 28 CFR Section 45.2