Two U.S. presidents named Bush have legacies dominated by wars in Iraq. That leaves a potential third, Jeb Bush, facing a uniquely sharp dilemma over how to tackle the current crisis in that region, having to explain how he would step up the fight against Islamic State militants without getting bogged down in another war.
A U.S. federal judge ruled late on Friday that AstraZeneca PLC's patent on its Pulmicort Repsules treatment for asthma was invalid, opening up the market to a second, cheaper generic version.
A deal with Iran on its controversial nuclear program would help it escape from sanctions and allow more efforts to be spent on economic development, Chinese Foreign Minister Wang Yi said during a trip to Tehran.
The United Nations Security Council on Sunday demanded Iranian-backed Houthi militia in Yemen withdraw from government institutions, called for an end to foreign interference and threatened "further steps" if the violence does not stop.
