I agree that an AI is unlikely to help. But also, I doubt that the primary reason is "restoring trust". I think the primary reason for many of them is that some of their readers react strongly to things they don't want to hear, and they're afraid of losing customers, so they're watering down their reporting to avoid being inconveniently right.
Or, even less charitably, management and employees have different politics, and management are the ones who find the articles inconvenient.
To be clear, there are absolutely biased news sources out there. For many of them, the bias is the point, and they have no particular desire to "restore trust" because they're already trusted by people who only want to read things supportive of their party. But a politician who finds the truth inconvenient will decry everything accurate as biased.
Or, even less charitably, management and employees have different politics, and management are the ones who find the articles inconvenient.
To be clear, there are absolutely biased news sources out there. For many of them, the bias is the point, and they have no particular desire to "restore trust" because they're already trusted by people who only want to read things supportive of their party. But a politician who finds the truth inconvenient will decry everything accurate as biased.