The Democratic presidential contest is now between an unstoppable force and an immovable object.
Hillary Clinton is retrenching behind what her advisers call “a demographic brick wall” in Ohio and Texas ”“ believing that Barack Obama’s recent momentum will be brought to an abrupt halt next month by the blue-collar and Latino voters who have largely backed her elsewhere.
Mr Obama still surges forward, putting his faith in the “fierce urgency of now” helping him to vault over the next big round of elections on March 4, when 444 delegates are at stake, in the same way that he has already defied the laws of political campaigning.
Something, or someone, has to give. And eyes are turning to the party leadership of 796 “super-delegates” to be a referee that stops this fight before it reaches the presidential nomination convention in August.