Indirect US-Iran negotiations in Doha hit a wall today after Tehran's lead negotiator, Mohammad Bagher Ghalibaf, refused to return to the table until a dispute over $6 billion in frozen Iranian funds is resolved. Vice President JD Vance struck a confident note, telling Fox News the US holds "all the cards" and has already achieved its "core mission" of preventing Iran from obtaining a nuclear weapon. But the August 21 ceasefire deadline is now the hard number every...