I suspect "politically neutral" is a meaningless phrase. It's just a way for people to tar their political opponents by inference.
The problem is: even if you report only facts, there is an editorial function in choosing which facts to report, because it is physically impossible to report all facts. So someone can always point to some sort of bias on choosing which facts to report.
The problem is: even if you report only facts, there is an editorial function in choosing which facts to report, because it is physically impossible to report all facts. So someone can always point to some sort of bias on choosing which facts to report.