A "trial balloon" is information released to the media and framed as if it were an unintentional leak from an unnamed political source; however, the intention is for politicians who are debating a change in policy to observe how the public might react to such a change.

"Yellow journalism" is the name given to the practice of reporting shocking or abhorrent news stories for the sake of attracting new readers and selling more newspapers. Yellow journalism is generally considered manipulative and bad journalistic practice, but that has not stopped various forms of media throughout American history from participating in it. Yellow journalism is most closely associated with the newspapers of William Randolph Hearst who (some argue) single-handedly dragged the United States into war with Spain by reporting on various news stories inaccurately to characterize the Spanish as violent and barbaric. Partisan journalism is the name given to a media source that serves the interests of a political party above the interests of the general public.

Since its invention, the television has become the easiest and most widely available means of acquiring political news and commentary.

News outlets often choose which stories get the headline or 1st position as well as, how much time is devoted to a subject. This is agenda setting and is the media's most used tool to influence viewers.

News corporations, like any business, want to make profit. The best way to do that is to ensure you have a large viewing audience that attracts advertisers to sell on their network.

The correct answer is “opinion leader.” Classic examples would be Piers Morgan, Sean Hannity, or anyone similar. Both of these men are widely known individuals who have quite a large effect on public opinion on political matters. Although teacher or community leader may have been tempting, those are technically examples of (possible) opinion leaders—but are not individually the definition.

In the middle and late 1800s, the middle class was fed up with "yellow journalism" and started buying into the social reform goals of the Progressive era. This gave rise to a market for magazines that would devote their time to issues of public policy with solid, fact-based reporting.

Coverage of political candidates on the "big three" networks has been broken up into shorter pieces and as a result is much less in-depth. The average sound bite dropped from 42 seconds in 1968 to 7.3 seconds in 2000. As a result, politicians often turn to cable TV, early morning news shows, prime time "news magazine shows," and other sources to get more extensive coverage.

In strong contrast to many other countries, American newspapers are primarily oriented to the local market and the local audience, and there is typically more local than national news inside. There are a few widely read national newspapers, such as the New York Times and the Washington Post, but these are the exception rather than the norm.

The media plays the role of gatekeeper because it can influence what subjects become national political issues and for how long. As scorekeepers, the national media helps keep track of the progress of various candidates in elections. As watchdogs, the media pays close attention to the politicians that they are interested in, and will expose corruption (as in the Watergate Scandal).