easy question. !

president jefferson used his power to purchase the louisiana territory.
veto
commander-in-chief
pardoning
treaty-making

treaty making

Explanation: Jefferson drafted the declaration of independence which was his greatest showing of his treaty making skills. The louisiana purchase was just another showing.

byzantine empire is the answer i think you are looking for.

hope this : )

i also think he is correct. i believe they came to washington to protest their rights.