A confirmation hearing for Paul Ingrassia, tapped for a key watchdog post in the Trump administration, has been postponed as Senate Republicans question his experience and history of incendiary remarks.

The Homeland Security and Government Affairs Committee was slated to hold a hearing Thursday for Ingrassia, chosen to lead the Office of Special Counsel in May. But Ingrassia’s name was removed from the hearing calendar, according to a source familiar with the matter, at the request of members wanting more time for one-on-one meetings with him.