What did Pinckney's Treaty accomplish? It promised American transit of supplies to Saint-Domingue.
It allowed Americans to trade goods at the Port of New Orleans.
It effectively closed the Port of New Orleans to Americans,
It transferred control over the Mississippi River to France,

It allowed Americans to trade goods at the Port of New Orleans.

Explanation:

It is a contract that has been extremely favorable to American traders and the economy in general. The said benefit was part of what the United States and Spain had achieved by the said treaty of 1795. American traders are thus allowed to store their goods in New Orleans for free. Spain and the United States also agreed that each side within its borders should control the native tribes and prevent possible attacks on their traders.

the answer should be:

their party has more members.

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