Who controlled the la territory in 1763

In response, Jefferson sent future U.S. president James Monroe to Paris to aid Livingston in the New Orleans purchase talks. In mid-April 1803, shortly before Monroe's arrival, the French asked a surprised Livingston if the United States was interested in purchasing all of Louisiana Territory.

Spain had not yet completed the transfer of Louisiana to France, and war between France and the UK was imminent. Out of anger towards Spain and the unique opportunity to sell something that was useless and not truly his yet, Napoleon decided to sell the entire territory.

The Louisiana Purchase was the latter, a treaty. The Constitution specifically grants the president the power to negotiate treaties which is just what Jefferson did. It is true that the Constitution does not specifically authorize Congress, let alone the executive branch, to purchase land from other nations.

In other words, it was the French who controlled the LA territory in 1763 until it was sold and the US had control over it.

Hoped this helped,

-Anime

(if it is incorrect, then I am sorry)

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.