Why; "Federalist Party: The party controlled the federal government until 1801, when it was overwhelmed by the Democratic-Republican opposition led by Thomas Jefferson. The Federalist Party came into being between 1792 and 1794 as a national coalition of bankers and businessmen in support of Alexander Hamilton's fiscal policies." (https://en.wikipedia.org/wiki/Federalist_Party)
The radical republicans in congress opposed president abraham lincoln's plan for reconstruction because lincoln rejected the idea of harsh punishments for the South
