Article I of the US Constitution puts this power in the hands of each State's legislature.
If you are interested in this topic, there is a fascinating development in this occurring in the Second Congressional District of Maine, which has adopted Ranked Choice Voting to determine its representatives. The loser of this year's election just sued in Federal Court to invalidate this as a way to hold an election.
They did not want the british to become too strong, whoever conquered ethiopia would have the upper hand
The result of creating a more cohesive political confederacy for the iroquois included : Losing hunting ground
After the political confederacy cohesion, they feel the need to gain more hunting ground territories
hope this helps