Who gives the us government its power? with term & example?

The Constitution gives the US Government the power to collect taxes. Before the Constitution, the Articles of Confederation existed and therefore the Central Government could not collect taxes, thus not being able to pay foreign loans or their soldiers. So the Founding Fathers wrote the Constitution to give the Central government the power to collect taxes.

supplies had to travel a long distance across water on ships that were often attacked, so they did not reach europe

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.