Authors:

The Convention probably foresaw what it has been a principal aim of these papers to inculcate that the danger which most threatens our political welfare is, that the state governments will finally sap the foundations of the Union.

Alexander Hamilton, James Madison, John Jay (2007). “The Federalist Papers”, p.243, Filiquarian Publishing, LLC.
The Convention probably foresaw what it has been a principal aim of these papers to inculcate that the danger which most threatens our political welfare is, that the state governments will finally sap the foundations of