What was one of the main goals of the ku klux klan after the civil war?

to rebuild the cities of the south
to educate formerly enslaved people
to aid radical reconstruction
to oppose radical reconstruction.

to oppose radical reconstruction

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.