WASHINGTON (AP) — A former White House spokesman told Congress on Friday that President Bush and Vice President Dick Cheney wanted him to say that Cheney's chief of staff wasn't involved in the leak of a CIA operative's identity, an assertion that turned out to be false.

Scott McClellan, Bush's spokesman from 2003-2006, said he had reservations about publicly clearing the name of I. Lewis "Scooter" Libby, Cheney's chief of staff at the time. Later, Libby was convicted of obstructing the investigation of the leak of Valerie Plame's CIA identity.

McClellan told the House Judiciary Committee that he doesn't know if a crime was committed. But he had harsh words for the White House, suggesting that the administration is continuing to cover up.

WASHINGTON (AP) — Democratic Party leaders agreed Saturday to seat Michigan and Florida delegates with half-votes at this summer's convention with a compromise that left Barack Obama on the verge of the nomination but riled Hillary Rodham Clinton backers who threatened to fight to the August convention.

"Hijacking four delegates is not a good way to start down the path of party unity," said adviser Harold Ickes.

Clinton's camp maintains she was entitled to four additional Michigan delegates.

WASHINGTON (AP) — Dig beneath the surface of the raucous Republican presidential race and you will find even deeper turmoil: Four in 10 GOP voters have switched candidates in the past month alone, and nearly two-thirds say they may change their minds again.

Mike Huckabee, who has roared to a tie with longtime front-runner Rudy Giuliani, has little reason to feel safe, according to an ongoing national survey conducted for The Associated Press and Yahoo News.

CHAPPAQUA, N.Y. (AP) — A neighbor of former President Bill Clinton and Hillary Rodham Clinton was arrested Thursday in the slaying of his wife, who he claimed had been shot by a stranger on a dark suburban road.

Carlos Perez-Olivo, a disbarred lawyer who was wounded himself in the Nov. 18, 2006, shooting, was expected in county court later Thursday, said Lucian Chalfen, spokesman for Westchester County District Attorney Janet DiFiore. Chalfen did not say what charge or charges Perez-Olivo faced.

Perez-Olivo's lawyer has said his client is innocent. He did not immediately return a telephone call seeking comment Thursday.

ST. LOUIS (AP) — Republican presidential candidate Rudy Giuliani was released from a St. Louis hospital Thursday after spending the night to undergo tests for flu-like symptoms.

"I feel great. Take care. Merry Christmas, I'm feeling fine thanks to the hospital. They did a good job," a smiling and waving Giuliani said as he left Barnes-Jewish Hospital en route to returning to New York.

His campaign said he would make planned stops in New Hampshire Saturday and Sunday.

The former New York mayor felt the symptoms while campaigning for the nomination in Missouri, and they soon became worse, campaign spokeswoman Katie Levinson said late Wednesday. She did not describe the symptoms beyond those being commonly associated with the flu.