According to Madison one of the powers that the constitution has would be the preservation of liberty.
This is the word that can be used interchangeably with freedom. It has to do with the freedom of the citizens of the nation in a way that they are not under any forms of dictatorship.
What Madison ks trying to say is that thge laws contained in the constitution would ensure that the freedom of the people are not joked with by those in power.
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