What could an increase in u. s. trade barriers result in?

One argument of those who supported the gold standard system in the united states was that the gold standard

Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. —"the gettysburg address," abraham lincoln which quotation correctly uses an ellipsis to shorten lincoln’s words?

What was the mame given to the idea that americans should expand across the nation ro the pacific coast