Treasury Secretary Jack Lew warned Sunday that "brinksmanship" over the debt ceiling would hurt the American economy but said it is Congress' job to find a solution to the budget stalemate. "Drawing this to brinksmanship is a mistake," Lew said on NBC's "Meet the Press." "It's bad for the economy for it to be brinksmanship. The job needs to get done." The Obama administration will not negotiate over the debt limit because it could cause a crisis, Lew said. But he did not say if pushing Congress to approve government funding bills could cause a federal shutdown this fall. Lew added that Republicans cannot fix the problems created by the sequestration by cutting domestic programs to fund the military.