This is extremely problematic. Much of news is highly syndicated, so what looks like 10 credible sources are actually just 2. I think the best you can aim for is empirical sources: receipts, videos, photo evidence, public disclosures directly at the source. Archiving is ok if disclosed.
I don't think LLMs can discern truth when the majority of news sources are incentivized primarily for views.
I don't think LLMs can discern truth when the majority of news sources are incentivized primarily for views.