Mr Mueller is leading the investigation into Russian interference in the 2016 US Presidential election, and possible collusion from the Trump campaign.
In August Mr Manafort was convicted of a range of financial crimes.
He went on to cut a deal with prosecutors, under which he pleaded guilty to charges of witness tampering and conspiracy.
However on Wednesday Judge Amy Berman Jackson found Mr Mueller “intentionally” lied, breaking the terms of the deal and thus voiding it.
More to follow…