What are policy entrepreneurs, and how do they try to get their underrepresented issues on the governmentalagenda?

What will be an ideal response?

An ideal response will:
1, Define a policy entrepreneur as someone in or out of government who invests political capital in an issue and depends heavily on the media to get particular ideas placed high on the policyagenda.
2, Explain how policy entrepreneurs rely on tools including press releases, letter writing, lobbying journalists,using personal contacts, and occasionally staging dramatic eventsto tell their side.
3, Explain how they bring underrepresented issues and concerns to the policy agenda—for example, Saul Alinsky's dramatization of the plight of the neighborhood by dumping dead rats on the mayor's lawn.