What are the advantages and disadvantages of more parties getting involved in our political system?

The Rosenstone, Behr, and Lazarus article for this week highlights several barriers for third party success in the United States. This reading was also written in 1984. Which of these barriers do you think is most significant/relevant today? Why? What are the advantages and disadvantages of more parties getting involved in our political system?

*** Link to article

http://www.thirdworldtraveler.com/Political_Reform/Third_Parties_America.html

Note: Reaction posts should be approximately 2-5 paragraphs in length.

In addition i need a response paragraph to another students work.

Comments may including: shedding additional light on a topic, asking the student to clarify their position(s)/argument(s), providing a counterargument, citing supporting/opposing evidence, tying the post to a topic previously mentioned, and so on