Congress has the power to set up and organize all federal courts below the Supreme Court.
federal courts
Step-by-step explanation:
Congress had many powers including coining money, they could declare war, they regulated commerce, imposed policies and rules for immigrants and they raised military forces.
Apart from all these the congress had the powers to set up and organise all the federal courts below the supreme court. They could establish federal courts and could control their jurisdiction. They controlled taxes, prices, excise duties etc.