It would be nice if the testimony by James Comey, the former director of the FBI, would change the tenor, tone, and drumbeat of the political rhetoric, but it won’t. At this point I doubt anything can. Everyone heard what they wanted, and the protagonists will spin the talking points to whatever they want to.
For the left, the President is a liar, and Comey leaking his notes makes him a hero. There will be those, who despite the testimony, will still claim Russia hacked the election and stole the crown from the rightful DNC queen, and President Trump attempted to obstruct the investigation.
For the right, there is finally an “on the record” statement from Comey that Trump was never the subject of the investigation and proof the former AG, Loretta Lynch influenced the Clinton e-mail investigation, most likely at the behest of her boss. The President’s supporters will recognize how thin any allegation of obstruction is and will use that to gain support as the left continues to beat the drum, an instrument they seem incapable of putting down, much like the President’s twitter device.
The MSM has already made clear their allegiance so we can expect their bias to continue unabated until people stop buying their products, or sponsors decide to advertise elsewhere.