Could Obama Sue Trump for Libel?

NBC News: “Although the law provides a great deal of leeway for political speech, that protection is not all encompassing. And because of the way Trump has leveled unsubstantiated accusations at Obama, he may have libeled his predecessor.”

Said law professor Benjamin Zipursky: “He’s basically stating that Mr. Obama committed crimes, and to state that somebody has committed a crime when it’s false is clearly defamatory. The question is: Is there enough evidence of serious reckless disregard to send that case to a jury? I don’t know what a court would decide on that, but there is some evidence of recklessness.”