Losing ground in Iowa, Clinton assails Obama's character -- This is not a good sign for the Clinton camp and is full of risk.

From The Washington Post:

With a new poll showing her losing ground in the Iowa caucus race, Sen. Hillary Rodham Clinton (D-N.Y.) mounted a new, more aggressive attack against Sen. Barack Obama (D-Ill.) on Sunday, raising direct questions about his character, challenging his integrity and . . . his reputation for honesty.