One day after undergoing surgery on a malignant brain tumor in North Carolina, Senator Edward M. Kennedy of Massachusetts was walking around, a statement said.
The treatment involves uranium 233, which does not exist in nature, and is considered too expensive and risky to keep.
Sen. Barack Obama of Illinois sealed the Democratic presidential nomination Tuesday, a historic step toward his once-improbable goal of becoming the nation’s first black president. Hillary Rodham Clinton maneuvered for the vice presidential spot on his fall ticket without conceding her own defeat.
Obama’s victory set up a five-month campaign with Republican Sen. John McCain of Arizona, a race between a 46-year-old opponent of the Iraq War and a 71-year-old former Vietnam prisoner of war and staunch supporter of the current U.S. military mission.
Both men promptly exchanged criticism over the war in Iraq and sought to claim the mantle of change in a country plainly tired of the status quo.