Sen. Dianne Feinstein, D-Calif., is pressing the head of the Justice Committee to subpoena, if necessary, two top intelligence officials after their public testimony before the Senate Intelligence Committee this week.

In a letter sent Friday to Senate Judiciary Chairman Chuck Grassley, R-Iowa, Feinstein said she was “concerned by the refusal of DNI Director Coats and NSA Director Admiral Rogers to answer questions posed by Senators” during a hearing on Wednesday.