Michael Bloomberg has announced his intention to join the presidential race.
Bloomberg, a former Republican who served three terms as Mayor of New York City, will now be seeking the Democratic nomination.
But does he have a chance of defeating Donald Trump, if he gets that far? And what does his potential candidacy say about the strength or weakness of the Democrats?
Cal Thomas and Marion McKeone discussed this and more from the United States.
Listen to the interview in full by pressing the play button on this page.