^Ammon, 1958, p. 5: "Most Republicans like former President [James] Madison readily acknowledged the shift that had taken place within the Republican party towards Federalist principles and viewed the process without qualms." And p. 4: "The Republicans had taken over (as they saw it) that which was of permanent value in the Federal program." And p. 10: "Federalists had vanished" from national politics.
^Brown, 1966, p. 23: "a new theory of party amalgamation preached the doctrine that party division was bad and that a one-party system best served the national interest" and "After 1815, stirred by the nationalism of the post-war era, and with the Federalists in decline, the Republicans took up the Federalist positions on a number of the great public issues of the day, sweeping all before them as they did. The Federalists gave up the ghost."