Jefferson founded the Republican Party in 1794, to stand against the Federalist Party, and for freedom and liberty from government both of which he thought were greatly threatened at the time. So, when Jefferson became president in 1800 he was the first Republican President. He stood for what modern Republicans stand for. The first Democrat president, i.e., a president who stood against freedom and liberty, was the monarchically inspired Washington( nominally a Federalist) or the communistically inspired FDR( nominally a Democrat). Do you agree?