Political science

Review and critical analysis of the Greenstein book (The Presidential Difference). must not be copied from the internet. The material that you submit must reflect your own writing. Further, do not use Wikipedia. It is not an academic source. Write more discussions please in these papers. This is link for the book: http://www.amazon.com/Presidential-Difference-Leadership-Style-Barack/dp/0691143838/ref=sr_1_1?ie=UTF8&qid=1444409903&sr=8-1&keywords=2.%09Greenstein.+The+Presidential+Difference.+Princeton+University+Press%2C+2009%2C+%283rd+Edition%29.++++++++++++++++++++++++++++++++++++++++ISBN+978-0-691-14383-5.