Spain PM could call early elections for Nov

  * Moody's issues negative review * Spanish Prime Minister Jose Luis Rodrigo Zapatero could call early general elections for November, four months early, the website of El Mundo newspaper said on

Libyan rebels say military chief killed.

Libya's rebels said their military commander was shot dead in an incident that remained shrouded in mystery, pointing either to divisions within the movement trying to oust Muammar Gaddafi or to an

Republicans race to revive U.S. debt plan

  * Compromise still seen possible over weekend * U.S. Republican leaders will scramble to rescue their budget deficit-cutting plan on Friday after conservatives mounted a rebellion that heaped uncertainty on efforts