The conservative Supreme Court wants to hand Donald Trump immunity, but it has to get around a past Nixon case to do so, former Richard Nixon White House counsel John Dean said on Thursday afternoon. Dean, who has previously mused about the ex-president’s legal issues, took to social media following a bombshell Supreme Court hearing that saw Trump’s lawyer arguing that a president may be able to order the assassination of an opponent without being held liable criminally. “Today’s SCOTUS argument on Trump’s criminal immunity revealed an activist conservative majority that wants to provide presi…