In the late 1920s the European demand for agricultural and manufacturing goods from the US was declining.
The answer is People vote for representatives who will make decision on their behalf. This method became the basis of modern democratic government that we use today. In our current system, the people could not directly vote for the regulations. But, the people had the power to appoint the person (representatives) that held their interest.
Nationalism is an idea and movement that holds that the nation should be congruent with the state. As a movement, nationalism tends to promote the interests of a particular nation (as in a group of people), especially with the aim of gaining and maintaining the nation's sovereignty (self-governance) over its homeland.
