U.S. Attorney John Durham has expanded his team as his review of the Trump-Russia investigators ramps up during the coronavirus pandemic, which has gripped the country and swept the globe.

The top federal prosecutor for Connecticut selected additional team members for his investigative effort in recent weeks, adding agents from the FBI as well as the chief of the Violent Crimes and Narcotics Trafficking Section for the U.S. attorney’s office in Washington, Anthony Scarpelli, according to sources cited by CNN. Durham, who has been running the operation out of Connecticut and D.C., drove down to Washington a few weeks ago to keep the investigation moving even as the COVID-19 virus hampered many law enforcement efforts nationwide.