-Can add an amendment if 2/3 of the House and 3/4 of the States agree
-Ten amendments were added immediately, the Bill of Rights. 17 have been added since.
-The president has no formal authority for proposing or vetoing an amendment proposal although he holds considerable influence over elected officials in his political party.
-The supporters of the Constitution began the ratification campaign in those states where there was little or no controversy, postponing until later the more difficult ones.