I'm pretty sure its concurrent powers.
Cloture can only be achieved by a three-fifths vote and parties don’t usually have that kind of majority!! Hope that helped :)
They would do various things. Sometimes they would give the opponents money to avoid war, sometimes they would form alliances through marriages. If they had been democratic they would've avoided even more since the people rarely wanted to go to war but they did because the monarchs wanted them to. They could give opponents land or they could unify under a single banner and avoid war that way.
Which is based on the Supremacy Clause, federal law preempts state law, even when the laws conflict. Thus, a federal court may require a state to stop certain behavior it believes interferes with, or is in conflict with, federal law.
It was a water supply for the civilizations within the two rivers. The land was also very fertile and it made it easy to grow food. Lots of vegetation grew there.
