Conspiracy theories have been central to Donald Trump's political rise. He was a leading promoter of the "birther" conspiracy theory targeting then-President Barack Obama, embraced outlandish theories about a "deep state" in the government and still pushes false claims that the 2020 election was stolen from him.

But conspiracy theories, and the people who support them, are unpredictable and hard to control. Now, Trump is increasingly the subject of conspiracy theories on both the left and the right, with many of his onetime supporters viewing him with growing skepticism.