The strongest corroboration is the search result for The Guardian article titled 'US defense official overseeing AI reaped millions selling xAI stock after Pentagon entered agreement with company,' which directly matches the claim's core elements: Emil Michael, his Pentagon role, AI oversight, and selling xAI stock for millions. The fetched AOL article, 'Elizabeth Warren demands Pete Hegseth share info on xAI's access to classified networks,' independently supports the surrounding factual context by confirming reported Pentagon-xAI dealings and the broader defense AI negotiations context. Search results for NPR and Fortune further corroborate that Emil Michael held the Pentagon under secretary for research and engineering role and was active in AI-related Pentagon matters. However, because the cited X post could not be fetched and the key Guardian page could not be directly fetched in this run, the exact 'up to $24 million earlier this year' figure is not fully validated from primary documentation here. So the statement is likely true, but not confirmed at the highest evidentiary standard in this run.