Intentionally misleading people to believing a certain political agenda. Using means to obtain information that subvert the code of ethics they they are expected to follow. Refusing to publish stories at the request of a campaign.
"Act Independently
The highest and primary obligation of ethical journalism is to serve the public.
Journalists should:
– Avoid conflicts of interest, real or perceived. Disclose unavoidable conflicts.
– Refuse gifts, favors, fees, free travel and special treatment, and avoid political and other outside activities that may compromise integrity or impartiality, or may damage credibility.
– Be wary of sources offering information for favors or money; do not pay for access to news. Identify content provided by outside sources, whether paid or not.
– Deny favored treatment to advertisers, donors or any other special interests, and resist internal and external pressure to influence coverage.
– Distinguish news from advertising and shun hybrids that blur the lines between the two. Prominently label sponsored content. "
I really think you should take a look at the link I posted.