LEARJET 60 CAPT TAXIED INTO POS WHEN NOT CLRED CAUSING ANOTHER ACFT TO BE SENT AROUND.

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ON OCT/TUE/02 AT APPROX XA00-XA30; I WAS ACTING AS FO/SIC AND PNF OF AN LJ60. WE WERE #2 TO TAKE OFF ON RWY 19L AT IAD. THE ACFT IN FRONT OF US WAS CLRED TO TAKE OFF. THE CTLR THEN TOLD US TO BE READY FOR AN IMMEDIATE TKOF AFTER THE NEXT ACFT. THE CAPT AND PF THEN BEGAN TO MOVE TOWARD THE RWY. I IMMEDIATELY TOLD THE CAPT THAT 'WE WERE NOT CLRED FOR THE RWY.' HE RESPONDED BACK 'YES WE WERE; HE CLRED US TO GO IMMEDIATELY BEHIND THIS GUY.' BEFORE I COULD THINK OR DO ANYTHING ELSE; HE HAD OUR AIRPLANE ON THE RWY; AND LCL WAS INSTRUCTING A COMMERCIAL ACFT TO GO AROUND. THE LCL CTLR CALLED US ON FREQ AND TOLD US WE WERE NOT CLRED FOR THE RWY. LATER; THE CAPT RECEIVED A MESSAGE TO CONTACT DULLES APCH AT WHICH TIME HE GAVE THEM HIS NAME AND ADDRESS. WE WERE NOT CLRED 'INTO POS' OR CLRED FOR TKOF BY THE LCL CTLR; AND I TOLD THE CAPT THIS. HE CHOSE TO DISMISS MY APPEAL TO STOP. WHAT COULD CORRECT THIS SIT? OPTIONS: IF CAPT DECIDES TO UTILIZE THE SECOND CREW MEMBER (CRM); IF CAPT HAS CERTIFICATE REVOKED; IF CAPT RETIRES.