Last-ditch effort to reach diplomatic solution to longstanding nuclear dispute will begin Thursday

Tehran says deal is possible as long as Washington abides by agreed-on preconditions, but Trump’s view is unclear

The indirect negotiations are seen as a last-ditch effort to prevent a conflict, but the chances of a nuclear agreement are unclear.

Iran's top diplomat arrives in Geneva as US announces new sanctions on vessels linked to Tehran's oil trade.

Last-ditch effort to reach diplomatic solution to longstanding nuclear dispute will begin Thursday

Third round of indirect negotiations takes place amid a massive US military build-up in the Middle East.

Third round of indirect negotiations takes place amid a massive US military build-up in the Middle East.

Third round of indirect negotiations takes place amid a massive US military build-up in the Middle East.

Iran’s foreign minister described the talks as some of the most serious that Iran has had with the U.S.

In Congress, Democrats increasingly fall in line behind War Powers resolution but holdouts give the White House support

Attack comes as Trump says he is 'not happy' with nuclear talks, amid directives to reduce embassy staff