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.
C. France
France was the first European country to start a revolution with the use of nationalism to unify their country.
The Anglo-Nepalese War, also known as the Gurkha War, was fought between the Kingdom of Gorkha and the East India Company as a result of border disputes and ambitious expansionism of both the belligerent parties.
