Mario Cuomo is proposing that both Obama and Hillary each promise to pick the other as running mate if they win the nomination. It appears that neither candidate is enamored with the proposal. He offers a rather devastating critique (considering the source) in response.

Appearing on CNN to plug his proposal, the former New York governor said he fears lasting damage in the party that could end up putting Republican John McCain in the White House. Cuomo is the latest big-name Democrat to publicly air such misgivings because the campaign has become filled with nearly daily attacks, with no end in sight — at least not until June. Cuomo said he’s surprised by the cold shoulder he’s received so far from the candidates, especially from Obama, since he has agreed to meet Iranian leader Mahmoud Ahmadinejad without preconditions. If the Democrats are willing to negotiate with foreign leaders, Cuomo asked, why not each other?