Three months since the start of its conflict with Iran, the Trump administration is oscillating between strike threats and diplomatic overtures. Neither path has yielded a clear resolution.

President Donald Trump warned on May 19 that the United States may strike Iran again — a day after he said he had held off a major assault in hopes of a peace deal — but Tehran's…

US President Donald Trump said Wednesday that talks with Tehran were "on the borderline" between a deal to end the Middle East war