What are the benefits of a federalist system and the Supremacy Clause?

The president vetoes a bill proposed to become law by congress. in this situation, what happens to the bill?

When pay is made public, people evaluate how equitable their pay is in light of the pay other people are receiving. the problem in this case is that dwight and guillermo have found out that others are getting paid more than they do for the same work. what are they likely to do under these circumstances

What was the result of president taft's "dollar diplomacy