3. Trump vs. CNN
A stark poll by Survey Monkey this summer found that 89% of Republicans view President Trump as more trustworthy than CNN, and 91% of Democrats think the opposite. Among all adults, trust for CNN is 7 points ahead of Trump. Among independents, CNN wins by 15 points.
From SurveyMonkey's Jon Cohen: "The fight ... between the White House and major media outlets has made the question of truthfulness just as partisan-tinged as health care or other policies."