Dick Gregory was first to mention it years ago, before Trump was president, once in a series of interviews for a YouTube channel called ReelBlack. 3 separate interviews, full and segmented online, all worth watching.
In recent years, primarily after covid op began, amongst common law circles, there is a lot of discussion of the Trump we see as an avatar for the elites and the real Trump behind the scenes attempting to end their cabal, and restore a constitutional republic with sound money.
Some overlap with Q-Anon but not always. Many Q-Anon are unaware of common law