What is unusual about Donald Trump's joint interview with Elon Musk?

Donald Trump's joint interview with Elon Musk represents an unprecedented presidential interview format where a candidate needed assistance from another person during the interview. As Lawrence O'Donnell notes, no previous president has ever conducted an interview while accompanied by the world's richest person. The interview failed to provide transparency about Musk's involvement in key government agencies like the Social Security Administration and the Internal Revenue Service. This unusual arrangement suggests Trump's submission to Musk's wealth and influence, raising questions about accountability and the proper separation between billionaire interests and government functions in a potential Trump administration.