Which of the following does not accurately describe a check on the president's power by congress?

the senate can approve or reject the president's appointments to the supreme court.
congress can override the president's veto with a majority vote in each house.
the senate can command the military, but declaring war is the president's role.
congress can decide whether to impeach the president.

The incorrect statement is the one that says that "The Senate can command the military, but declaring war is the president's role".

Explanation:

The sentence is not correct, since in reality the President of the United States is the Commander-in-Chief of the Armed Forces, that is, he is the one who directs the military and orders their operations. In turn, only Congress can declare war, passing a law on the matter.