A senior Iranian official says talks with the United States have stalled over Iran’s demand for $24 billion in frozen assets, urging Donald Trump to restart negotiations while warning of broader regional escalation if tensions turn into renewed conflict. A potential peace deal between Iran and the United States has hit a standstill over Tehran’s demand for the release of $24 billion in frozen Iranian assets, according to a senior Iranian official who spoke to CNN in an interview from Tehran. Mohsen R... [1992 chars]