The president and the congress influence the supreme court by controlling who is placed on the court in the first place. Statutes - the second important source of law. The constitution gave to the united states congress the power to pass laws on various subjects. These laws are called statutes, and they can cover absolutely any topic, so long as they do not violate the. An idea (bill) for a new law is first proposed in the congress. > the house and senate then independently vote on the bill. (must win a majority vote in each of these chambers) > if congress passes a bill, it goes to the white house for the president"s approval. If the president signs it, a new statute is created (the law of the land. ) If the president refuses to approve, or vetoes a bill, it does not become a statute unless congress overrides the veto.