Obama, Clinton Sparring Early - washingtonpost.com

In the month since the presidential nominating contest got underway, Obama (D-Ill.) and Sen. Hillary Rodham Clinton (D-N.Y.) have barely mentioned each other's names in public or even greeted each other in the Senate halls. But each campaign has increasingly fixated on the other, engaging in a shadowboxing match in which they intentionally cross paths but dodge to avoid each other's subtle jabs. With an intensity unusual for this stage of the campaign the two are indirectly engaging, invading each other's terrain and going to great lengths to contrast their candidacies.