Why has union support in the United States gone through cycles of resistance to strong support?

Why has union support in the United States gone through cycles of resistance to strong support?

Complete and submit the assignment below, then you can proceed onto the next lesson. 

Write a short three paragraph essay explaining your opinion.

Why has union support in the United States gone through cycles of resistance to strong support? You may use your text and what you learned in this lesson in addition to credible internet sources. Make sure to include strong evidence to support your opinion. Keep in mind what you learned in this lesson about union support and resistance from the 1800s to current day. This should be at least 200 words.