Via Politico:

Deputy Attorney General Rod Rosenstein will brief all senators on Thursday on the circumstances behind former FBI Director James Comey’s abrupt firing last week, a spokesman for Senate Majority Leader Mitch McConnell (R-Ky.) announced Monday.

The second-ranking DOJ official is facing increasing scrutiny on Capitol Hill for his role in Comey’s dismissal, which White House officials initially said was based on a three-page memo drafted by Rosenstein that laid out the rationale behind the firing.