Speculation over Rice's future has GOP abuzz BY HELEN KENNEDY New York Daily News WASHINGTON - (KRT) - President Condi? Political speculation starts earlier and earlier these days, but it's particularly strong now as President Bush starts his second term without the usual clear successor. Condoleezza Rice - one of Bush's most trusted advisers and now as newly minted secretary of state, arguably the most powerful woman in the world - is setting GOP hearts aflutter in the wake of her boffo first foreign trip. Already, many are starting to dream of a Condi Rice-Hillary Clinton smackdown in `08. "That's...