After House Intelligence Committee Chairman Devin Nunes, R-Calif., sent his memo laying out potential abuses of the FISA process by the FBI to the White House, Rep. Nancy Pelosi, D-Calif., demanded that he be removed as chairman. Nunes was “deliberately dishonest” in pushing to release a “bogus memo,” Pelosi declared, and had “disgraced the House Intelligence Committee” with his “partisan effort to distort intelligence.” But Democrats can’t so easily dismiss the far more detailed declassified criminal referral written by two respected Republican senators — Charles E. Grassley, R-Iowa, and Lindsey O. Graham, R-S.C. — which confirms the claims raised in...