Identify the term partisan press. Why was the partisan press superseded by the objective press?

What will be an ideal response?

A partisan press is one that concentrates on advancing a particular ideological or partisan viewpoint. The American media, with few exceptions, no longer follows this pattern. At one time, the American press was quite partisan. In the early years of the country, the first newspapers were created specifically to espouse a particular political viewpoint and could not survive without the patronage of a political party. This situation changed with technological innovations such as the telegraph and power-driven printing press, which changed the economics of American newspapers. Partly as a reaction against the excesses of a new, sensationalist "yellow journalism," newspapers then turned to the objective model of reporting, which concentrates on objective reporting of facts and aims to report on differing sides of controversial issues. They accomplished this in part by a direct company policy focus on objective reporting and a new focus on the professional ethics of objective journalism by journalism schools.