What does it mean when it is said that the federal courts exercise both exclusive and concurrent jurisdiction?

Based on this graph, it is reasonable to assume that by 1930 the percentage of the population with the right to vote was

When president johnson vetoed a law that would extend the freedmen’s bureau, congress reacted by supporting the veto and closing the freedmen’s bureau. writing a new law to show support for the black codes. overriding the veto and expanding the agency’s powers. drafting a law to prevent african americans from voting.

Why did louis xvi call a meeting of the estates-general in 1789? how long had it been since such a meeting had been called?