The current charge is a placeholder, maybe a bargaining chip.
This all goes back to early 2016 and Obama's NSA Director Admiral Mike Rogers uncovering wholesale unlawful abuses of the NSA database searching for info on US citizens -- a "702", after the section in the Foreign Intelligence Surveillance Act that establishes the rules to protect US citizens.
Rogers also discovered that the Obama administration was allowing a "private contractor" unfettered access to the FBI's portal to the NSA database, he shut that down on April 18, 2016 . . . The very next day, Mary Jacoby, wife of Glenn Simpson was at the White House and spent 14 hours there.
By the end of April, Simpson's company, Fusion GPS, no doubt with terabytes of pilfered data from the NSA, was in the employ of the DNC and the Hillary Clinton campaign, in a deal brokered by a lawyer representing Fusion GPS, the DNC and Crowdstrike and the Hillary Clinton Campaign , in the employ of a firm called Perkin-Coie and that lawyer's name was . . . Michael Sussmann!
After a few months of collaboration, Sussmann et al, had composed a series of white papers for submittal to the FBI laying out a fantastical story of secret servers and backchannel communications between Trump and Russia.
Sussmann is the lynchpin to make the entire DNC/HRC Criminal Contrapion fall apart, from the FISA abuses to the "Russia hacked the DNC" lie to the whole Russia Hoax bullshit, he knows it all.