The Obama administration is facing its last best chance to curb Iran’s nuclear program – not just to meet an end-of-the-month deadline for a deal, but also to seal one before skeptical Republicans who will control Congress next year are able to scuttle it. In the final stretch of years of negotiations to limit Tehran’s nuclear production, U.S. Secretary of State John Kerry met Monday for a second straight day of talks with Iranian Foreign Minister Javad Zarif and European Union senior adviser Catherine Ashton in Oman’s capital. There was no sign of an imminent breakthrough. The stakes are high as the Nov. 24 deadline approaches. A deal could quell Mideast fears about Iran’s ability to build a nuclear bomb and help revive the Islamic Republic’s economy. It also would deliver a foreign policy triumph for the White House, which is being […]