John Bolton is a hardline conservative. He was one of the key evangelists for the invasion of Iraq. He's basically called for the U.N. to be dismantled. He's openly called for regime change in numerous countries. He's been accused of manipulating evidence to support his ultra hawkish views. He was basically the closest thing American politics had to Trump's abrasiveness many years before Trump entered the scene. Which is why Trump brought him on as national security advisor for 17 months during his first term. Keeping him in that role should have been easy. On paper, Trump was Bolton's dream for executive power, and Bolton was ideal for carrying out Trump's stated vision. But Trump was so incompetent and Bolton was so repulsed by Trump's incompetence and Trump was so resentful of the perception that Bolton was tougher than he was that the two clashed repeatedly and Bolton ultimately left. Bolton then wrote a scathing memoir about his time as Trump's national security advisor that laid bare Trump's incompetence on foreign policy and national security. Today, the FBI searched Bolton's home and office on the absurd suspicion of mishandling classified documents, but it's really because Bolton wrote that scathing memoir. If Trump is willing to do something this brazen against someone like Bolton, imagine what he's willing to do against anyone else.