Washington appears willing to concede to Iran's requests on a few fronts, although the sides largely remain at odds when it comes to Tehran's nuclear program.

There are signs of fresh momentum to end the war, but Trump himself has injected a note of caution.

Washington appears willing to concede to Iran's requests on a few fronts, although the sides largely remain at odds when it comes to Tehran's nuclear program.

The White House reportedly believes it could be closing in on a 14-point memorandum of understanding with Iran.