What was Lawrence O'Donnell's assessment of the interview between Elon Musk and Donald Trump on Fox?

Lawrence O'Donnell described the interview as "breathtakingly empty" and "a complete utter waste of time." He criticized both Musk and Trump for failing to discuss any substantive details of their claims during their hour-long conversation in the Roosevelt Room. O'Donnell emphasized that neither participant was willing to "put up or shut up" regarding the actual details of what they were claiming Musk had discovered. Despite the high-profile nature of the interview, O'Donnell asserted that the content was even more devoid of substance than viewers could imagine.