NBA legend Kareem Abdul-Jabbar appeared on MSNBC’s “The Rachel Maddow Show” on Thursday to discuss his on-going feud with GOP presidential hopeful Donald Trump, where the all-time NBA leader in points said Trump was the Constitution’s “biggest enemy,” to which Trump replied that Abdul-Jabbar does not “have a clue about life.” Abdul-Jabbar said Trump attacks journalists to “silence criticism” to “stifle public discourse,” and his style is “attractive,” but as time goes on, he will have to show some “substance.” Abdul-Jabbar also added that Trump’s candidacy “will not last very long” once he starts to show some substance. “It bothers me because the First Amendment is such an essential part of the what our democracy is about. And when you attack journalists in order to silence criticism, are you really stifling the public discourse? The fact we can engage in some critical analysis of what someone says and ask them questions, that makes our democracy work. It makes us able