Different media sources present issues in different ways, depending on their goals, audiences, journalistic practices, and possibly, political position. This site gives you a lens into how the same issue can be represented in media sources across the spectrum.
Journalists follow a code of ethics. Does the source you're looking at seem to follow those guidelines? When evaluating the news, think like journalist, investigating the source, its claims, and the evidence it's using to support those claims.
Librarian Mike Caulfield's SIFT model can help with this: Stop. Investigate the Source. Find trusted coverage. Trace to the original.
You can read more on his website or skim the infographic below:
The following resources can help you with fact-checking.
The following infographic from IFLA (International Federation of Library Associations and Institutions) gives you some additional tips.