Sergei Millian thrust himself on the campaign. He dangled offers too. His interview with ABC was used by HRC's media team to undercut Trump.
The FBI and the IG failed to get clarity on Person 1. They were told he was a Steele source.
Congress want to get into the details.
Sergei claims he was framed. He needs to testify. Simple.
The FBI said he didn't and fled the country.
If Congress can get the FBI to confirm that Mueller lied in the report that could be a very interesting development.