Nobody doubts that Barack Obama will win his home state of Hawaii, but Hillary Clinton's coming on strong in Wisconsin. Maybe Obama won't win ten in a row. Whatever happens in those states tomorrow, Clinton needs to win big in Ohio and Texas on March 4. But party rules could give her trouble in Texas. Meantime, in Houston, Texas today, John McCain's got the endorsement of George H. W. Bush, although not without a nod toward Mike Hucakbee's continuing candidacy. The real problem for McCain's campaign is how much to associate himself with the current President, George W. Bush. What's the best role for the current president in this year's campaign? We hear about growing uncertainties as time grows short in both parties.