What promise did the federalists have to deliver on first?

getting new york to approve the constitution
approving the first amendments
electing the new president
allowing the states to vote

Allowing the states to vote.

Explanation:

The federalists wanted a strong federal government and the anti-federalists wanted the states to hold power over the federal government. The 10th amendment gives certain powers to the state (Laws and Regulations).

10th amendment: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people" -US constitution, 1789.  

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts