There’s been a lot of talk today about Joseph Mifsud, a Malta-born professor who was in contact with Trump campaign adviser George Papadopoulos throughout 2016 before the election.

Mueller’s team, in court filings and their final report, describe Mifsud as someone who has vast connections to the Russian government and tried to bring Papadopoulos closer to the Russians.

How he's linked to the Mueller probe: The Mueller investigation determined that Mifsud told Papadopoulos that Russia “could assist the Campaign through the anonymous release of information damaging to candidate Clinton.” That conversation happened months before it was publicly known that Russia hacked the Democrats.

But after leaving prison, Papadopoulos has rallied Republican lawmakers and right-wing conspiracy theorists on the belief that Mifsud did not have serious connections to Russia and was actually a Western intelligence agent. There is little evidence to support these theories, and the Mueller report laid out Mifsud’s vast Russian ties. He has vanished since his name came up in the probe.