* US vows to keep up Iran pressure if no will shown for deal

* Iran says won’t sit for talks as long as Trump’s maximum pressure is in place

* Khamenei rejects US talks in setback to Trump hopes for a nuclear deal

* Iran’s parliament speaker backs Khamenei’s rejection of US talks

* Iranian political factions split over Khamenei’s rejection of US talks

* Iranian currency hits record low after Khamenei rejects US talks

* Iran’s president warned of deepening crises as hopes for US talks fade