Just read the third volume of Chris Mullin's diary, Decline & Fall. Mullin was the independently-minded, leftish-leaning MP for the Sunderland South constituency and was the journalist who took up the case of the Birmingham Six.
His contempt for the packaged, "on-message" politics of both New Labour & Cameron's Conservatives is quite clear and deliciously expressed. Well worth a read but at the same time profoundly depressing when one reads about the shallowness of the people (in all parties) running the country, who are more interested in scoring points off each other than doing things for the ordinary people who elect them.