In a note from James Madison (Thomas Jefferson's Secretary of State and a future president) to the U.S. ambassador to Spain, the federal government expressed the opposition of the American government to further territorial acquisition by European powers. Madison's sentiment might have been meaningless because, as was noted before, the European powers held much more territory in comparison to the territory held by the U.S. Although Thomas Jefferson was pro-French, in an attempt to keep the British–French rivalry out the U.S., the federal government under Jefferson made it clear to its ambassadors that the U.S. would not support any future colonization efforts on the North American continent.