Ooh I think it was these guys
And I was right about their not so hidden agenda to whitewash[sic] American history.
Those boring stock videos of white people enjoying coffee at laptops and nodding sagely at how wise the forefathers were (Lincoln notably absent)
Turns out they're a Koch Bros Operation
https://www.reddit.com/r/KochWatch/comments/14pfczn/hillsdale_college_ads_on_youtube/