Chuck Grassley not sure GOP Senators can get it up

G.O.P. Support of Senate Health Repeal Erodes During Break.  (The New York Times, 7/7/2017)

10 defections.  More on the way? Three other Republican senators, Bob Corker of Tennessee, Charles E. Grassley of Iowa and John Boozman of Arkansas, have withheld their support, although they have not declared their opposition, and others have largely remained silent.