Original sentence: Brian has  liberal political leanings, which mirror MacFarlane's; he is meant to be a manifestation of Family Guy'''s creator within the show (for example, MacFarlane uses his ordinary speaking voice while portraying Brian)
Edited sentence: Brian has  liberal, almost socialist political leanings, which mirror MacFarlane's; he is meant to be a manifestation of Family Guy'''s creator within the show (for example, MacFarlane uses his ordinary speaking voice while portraying Brian)