What is plagiarism?  Is it right for Senator John Walsh to be punished for his actions mentioned in the articles?

What is plagiarism?  Is it right for Senator John Walsh to be punished for his actions mentioned in the articles?  Is it fair to the other students who have earned masters degrees honestly and not punish those who do commit plagiarism?  Give reasons for and/or explain your answers.  To receive full credit for this week’s discussion and every week’s discussion, you must answer the question(s) and then respond to at least two other students’ postings.