I like that Trump has started saying Obama is in the files - like that would make the left want to keep them hidden.
The modern American right has institutions like Fox News and Sinclair. Those are laser focused on daily PR initiatives to protect its crooks. The left doesn’t have laser focused institutions like that. They’re comically disorganized, and as a result, and the base isn’t hearing the exact same spin from all of their media channels.
Even if Obama was in those files, a PR effort to protect him wouldn’t be effective, and the left wing voters wouldn’t want to protect him.

Or take Friday off.