Original sentence: Hedges writes on left wing politics in the United States, and asserts the existence of a distinct socioeconomic class which he calls "the liberal class", which has declined in influence since the 1960s.The book received positive reviews in The New Yorker, NPR, Publisher Weekly,  and Socialist Worker
Edited sentence: Hedges writes on left wing politics in the United States, discussing a particular socioeconomic class, "the liberal class", and its decline in influence that followed the 1960's.The book received popularity within the left wing community.The book received positive critical reception, receiving attention from The New Yorker, NPR and Publisher Weekly