Is popular sovereignty important to a republic

When benito muslini came into power he promised to

What happened as the result of a conflict between british troops and a colonial militia in massachusetts

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.