...this weekend how Obama handles the fray. It will be hard to stay far above it. But that's largely what got him to this place, with a real shot at becoming the nominee. Michael Tackett is the Chicago Tribune's Washington Bureau chief.

...And he is staking his campaign, which sounds almost no note other than "be afraid," on the results in Florida, where voters are more focused on the economy. Ironic. Michael Tackett is the Chicago Tribune's Washington bureau chief.