McCabe was set to testify in front of the judiciary panel on Tuesday as part of its investigation into the origins of the FBI’s Russia probe but said he felt attending would be tantamount to putting his family at risk after Sens. Mike Lee (R-Utah) and Thom Tillis (R-N.C.), who sit on the committee, tested positive.

“Mr. McCabe was still prepared to testify voluntarily and in person on October 6 as recently as the latter part of this past week. However, since that time, it has been reported that at least two members of your Committee – Senators Mike Lee and Thom Tillis – have tested positive for Covid-19, and it may well be that other members of the Committee and staff who plan to attend the hearing will test positive between now and then, or may have been exposed to the virus and may be a carrier. Under these circumstances, an in-person hearing carries grave safety risks to Mr. McCabe, me, and senators and staff who would attend,” McCabe’s attorney wrote to Sen. Lindsey Graham (R-S.C.), the committee’s chairman.