AP - Sen. Edward M. Kennedy enjoyed "a restful night's sleep" and was walking hospital hallways on Tuesday, one day after undergoing an aggressive brain surgery aimed at slicing away at a cancerous tumor to give chemotherapy and radiation treatments a chance to work.

AP - Sen. Robert C. Byrd, 90, will remain hospitalized for several more days for treatment of a mild infection, his office said Tuesday.

AP - A House committee chairman said Tuesday he is seeking more documents from the CIA leak probe because Vice President Dick Cheney's former chief of staff made a significant disclosure to the FBI that warrants further congressional follow-up.

AP - After investigating all his options with his trademark intensity, Sen. Edward M. Kennedy underwent 3 1/2 hours of risky and exquisitely delicate surgery Monday to cut out as much of his cancerous brain tumor as possible.

Reuters - South Carolina Rep. James Clyburn, the third-ranking Democrat in the U.S. House of Representatives, is endorsing Barack Obama for president, his office said on Monday.

AP - The Senate began what is expected to be a weeklong, contentious debate Monday over legislation to combat global warming by mandatory reductions in carbon dioxide and other greenhouse gases.

AFP - US Senator Edward Kennedy underwent "successful" brain cancer surgery Monday, his doctor said, as the political icon vowed a return to work and to campaigning for presidential hopeful Barack Obama.

AP - Sen. Robert C. Byrd was hospitalized Monday night at his doctor's urging after suffering from lethargy and sluggishness at the Capitol and, later, at his home, a spokesman for the 90-year-old Democrat said.

AP - Congressional Democrats want to ban Pentagon propaganda on the Iraq war, but they are likely to find that enforcement is easier said than done.