Which explorer led an expedition in the lower mississippi river valley

Along narrative poem about the heroic figure is

How did margaret thatcher de-escalate the cold war

Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.