The whole reason for a central bank with its own mission and decisionmaking on monetary policy is to separate that function from budgeting done by the Congress, so that the people controlling the budget
cannot balance the budget through monetary policy.
Now, if you had evidence of the Fed making decisions on the basis of impact on budget fiscal balance rather than on the basis of balancing the tension in its “dual mandate” on full employment and price stability, then you’d have something the Fed wasn’t supposed to do. But money printing (in the figurative sense) is exactly one of the things that the entity handed the reigns of monetary policy under the law is supposed to use as a means to acheive its mandate.