"Things like false disclosures on forms that Mr. Manafort or Michael Flynn made or Jared Kushner; things like obstruction as to the firing of James Comey. For the first time here, what we've learned -- assuming that The Wall Street Journal's report about a search warrant is correct -- is that Bob Muller went to a federal judge and presented evidence and convinced the judge that a crime was committed involving foreign individuals contributing to a political election here in the United States through their actions on Facebook," Mariotti told CBS News' Elaine Quijano.

https://www.cbsnews.com/news/why-facebook-warrant-could-signal-a-turning-point-in-muellers-investigation/