House Minority Leader Kevin McCarthy, sent a letter to House Speaker Nancy Pelosi, asking her to suspend the impeachment inquiry into President Trump until “equitable rules and procedures” are set up.

“Unfortunately, you have given no clear indication as to how your impeachment inquiry will proceed – including whether key historical precedents or basic standards of due process will be observed,” McCarthy said in his letter. “In addition, the swiftness and recklessness with which you have proceeded has already resulted in committee chairs attempting to limit minority participation in scheduled interviews, calling into question the integrity of such an inquiry.”

McCarthy’s reference to limiting Republican participation is a reference to reports that House Intelligence Committee Chairman Adam Schiff, D-Calif., was limiting Republicans’ ability to ask questions during Thursday’s testimony by former U.S. envoy for Ukraine Kurt Volker.

In his letter to Pelosi, McCarthy asks a number of questions, including whether Pelosi plans to hold a full House vote on authorizing the impeachment inquiry, whether she plans to grant subpoena powers to both the committee chairs and the ranking members, and whether she’ll allow Trump’s lawyers to attend the hearings.