Answer those question regarding to wall street journal

answer those question regarding to wall street journal articles.
1. According to Fred Greenstein, how is the president A cognitive aidfor the citizenry?
2. Briefly explain the role/s of pass secretary.
3. During the presidential terms of Bill Clinton, George W. Bush, and Barack Obama the president capitalized on the idea of a permanent campaign. What is a permanent campaign and how has it affected modern politics?
4. Based off of your text, is the background of a president significantly related to the executive performance during their tenure? Why or why not?
5. Describe the key points of the multiple advocacy system, or how it is a mixed system.

answer should be 3 sentences or more.
thanks