The correct statement about Thomas Jefferson from the options provided is:
He supported states' rights.
Jefferson was a proponent of states' rights and often advocated for a limited federal government, contrasting with the Federalist Party's emphasis on a stronger central government. He did not support the establishment of a large standing army and was not a member of the Federalist Party. In fact, he was one of the key figures in the formation of the Democratic-Republican Party, which opposed the Federalists.