In McCain live interview and taped Clinton, Obama interviews the candidates discuss their interpretations of MLK's message, racial progress since his death.
Read transcript of Clinton interview here, read Obama transcript here and McCain transcript here.
Earlier: All three candidates honor King on the 40th anniversary of his assassination.
--McCain says in Memphis he was wrong to oppose the King holiday. Full remarks here.
--Clinton, also in Memphis, calls for a cabinet-level "poverty czar." Position has been advocated by King's family.
--Obama says in Indiana that King's work remains unfinished. Full remarks here. Also speaks on Tom Joyner's radio show.
