It literally started happening within hours of the attempt. Bunch of people on the left think that it was some false flag operation to boost Trump's polling numbers or to unite the right. Bunch of people on the right think it was ordered directly by Biden himself. I think I've also read various places that it was (in no particular order) the work of global elitists, Jews, Satanic pedophiles, the CIA, the Deep State, disgruntled Republicans, China, the legacy media, the DNC, or possibly Jason Borne.