What powers do states have/what powers does the federal gov. have/ shared powers

After the attacks of september 11, 2001, the united states demanded that

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.

The constitutional amendment that profited denying voting rights to people based on race or color is the?