I think Sorkin was so tired of watching US produced news shows that he decided to make his own. He goes to the roots of news, presenting facts and presenting those who pretend to know the facts. He calls out the liars for who they are - liars and supports honesty.
Sorkin tries not to biased and he does a good job. He presents a main character, who is a registered republican, who has to deal and struggle with the lack of "republicanism" of his own party and the trolling of that by, as he states in last's episode: "The Greater Fool" the American Taliban - ultra right and ultra conservative, christian extremism.
All characters in this shows are being presented authentic, well educated and very humain and the viewer can find himself quickly identifying with those.
If you loved The West Wing, then you are in for a treat!