Europe Struggling to Save Iran Deal

You would not know it from reading the news, but the Iran nuclear deal is still alive. 
The Europeans, however, are faced with an impossible task: to preserve an international agreement that cannot survive without Washington’s backing in the face of an aggressive US posture toward Tehran, reads an article published by the Atlantic Council. 
Below is the full text:
In May, US President Donald Trump pulled out of the nuclear deal. The United States next reimposed a first batch of economic sanctions on Iran in early August. Multinational companies have started leaving Iran even before the November 5 deadline by when Washington will enact a renewed oil and gas embargo on the country.