10 years ago I would have agreed with this.Because those that actually work in the system, that deal with these types of cases and actually have to consider the applicable law, don't permit themselves to succumb to the white noise that is your last paragraph.
Truly, whether a prosecutor, judge, or defense attorney has an R or a D next to his or her name really very likely doesn't come in to play. I can't say the same for media and observers, but I'm very confident that a charging decision wasn't politically driven and the judge isn't making decisions in the matter with politics in mind. That #### happens in movies and rarely happens in real life (I'd say maybe the Duke lacrosse case but I don't even think that was truly "political" but more so a prosecutor looking to make a name for himself).