McCain Says He’d “Certainly Consider” Debate

Says at Columbus, Ohio event that he wasn't aware Huckabee had asked for one.   Huckabee, at Cleveland presser, questioned McCain's viability saying that the race remains open while questions surround McCain's spending, called for debate.   Points to allegations that McCain is not adhering to campaign finance laws, saying rival may have to “go completely dark between virtually now and the nomination convention."