the media does that kind of thing all the time and since there has yet to be an investigation you can assume they've made a mistake about anything
I'm honestly amazed that you believe the "media" is fomenting these stories as a way to help Obama
The more I think about that premise the more I'm amazed you actually believe it
Not fomenting. You don't seem to understand. Allow me to explain by way of analogy:
Take NPR as an example. Everyone knows that they have a strong left bias. But nobody there is actively pushing a left-wing bias. So what went wrong? Simple: Everyone at NPR is a leftist and they have leftist friends. So they all live in their own little leftist bubbles without exposure to alternative ways of viewing the world. Of course, NPR being the way it is, it only attracts leftists to work for it, because who would want to be a conservative (or libertarian) working for NPR? So the news stories put forth by NPR have all been filtered thoroughly through the collective perspectives of journalists with strong internal left-wing biases. It is not intentional, but it is there.
The same holds true for many other news organizations. MSNBC is an obvious example, though I'm not sure if their bias is unintentional or not. But most of these other prominent news organizations, like CNN, CBS, ABC, Newsweek, TIME, US News and World Report, the New York Times, etc. all have this kind of unintentional left-wing bias. I do believe that most of the journalists and editors in these organizations do not want to be biased; they
want to hold true to their journalistic integrity. But that is impossible to do when everyone around you thinks a certain way and practically everyone you work with thinks in that same way.
This is all exacerbated by the fact that leftists generally do not understand how conservatives and libertarians view the world.
So to take this back to, say, the Trayvon Martin shooting: they hear about a black kid getting shot by a "white" (actually half-Hispanic) dude and what do they think? Racism and guns. So that's what they report, since they interact with no one in their close circle of friends and co-workers who views the world through a different lense. Throw in a little bit of yellow journalism for good measure (e.g. showing pics of Trayvon Martin as a middle schooler, not as a 6'3" 17 year old) to top it off and you have a clear-cut case of left-wing bias.