Trust is a difficult concept in relationship to journalism. I might trust Fox News and you might trust MSNBC, and we both have high degrees of trust in the journalism we're consuming, so I'm not sure that's the core metric on an individual level.
On a societal level, I think we can talk about how much trustworthy and accurate information is in our public sphere, is circulating, and whether that's enough. I think that's the point on which we need to engage in this. It's not whether each individual trusts the particular news source they're getting their content from, but whether as a society we have a collective body of reliable information in our democracy.