House Democrats are sounding the alarm over plans by House Intelligence Committee ranking member Devin Nunes, R-Calif., to meet privately with Attorney General Bill Barr to discuss criminal referrals against federal authorities involved in investigating Trump and his campaign associates over the Russia collusion allegations.

In a hearing before the Senate Appropriations Committee this week, Barr said that he plans to investigate the probes and the collection of evidence that sparked special counsel Robert Mueller’s investigation. Nunes joined other congressional Republicans in supporting Barr’s probe, saying over the last several days that he will send as many as eight criminal referrals to the Justice Department. At the hearing, Barr told lawmakers that he was awaiting Nunes’ information as the new probes unfold.