Yes, all 3 of them.
Cruzs effort is joined by Senators Lee, John Boozman (R-Ark.), Mike Crapo (R-Idaho), Steve Daines (R-Mont.), James Inhofe (R-Okla). James Lankford (R-Okla.), Pat Roberts (R-Kan.), Tim Scott (R-S.C.), Jeff Sessions (R-Ala.) Richard Shelby (R-Ala.), and David Vitter (R-La.) Congressman Randy Weber (R-Texas).