John Bolton, who was Trump’s national security adviser in his first term, has long been on a list of Americans targeted for assassination by Iran, the Journal said. As tensions escalate between the United States and Iran, Trump has repeatedly talked about how he is Iran’s number one enemy and the target of assassination plots. “How about a little concern, then, about Iran’s threats to kill his former national security adviser, John Bolton?” “How about a little concern, then, about Iran’s threats to kill his former national security adviser, John Bolton?” the Wall Street Journal wrote of Trump's former national security adviser.