Explain the difference between a social movement, interest group, and political party.

Briefly explain the difference between a social movement, interest group, and political party. 

Your response should be at least 75 words in length

Explain the difference between the three types of interest groups. Provide examples of each. Which type of interest group do you believe has the most influence over U.S. politics? Explain why. 

Your response should be at least 200 words in length.

Explain why social movements have become more widespread in the past several decades. Provide examples of each explanation. Which reason do you believe is most compelling, and why?