It took much too long for President Trump to arrive at the conclusion many of us have had from the get-go. Namely, that dealing with Iran's current government is not possible. He seems to say that now, finally.
Assume that Iran believes what they have publicly said for 47 years. Specifically, that the USA is a literal instrumentality of Satan, and that as believers the only goal possible to them is our complete and total annihilation.
No actual deal that permits our continued existence is morally possible to Iran. Any apparent deal they 'negotiate' or 'sign' is merely stringing us along, buying time. The goal - our extinction - hasn't gone away.
We can speculate at Trump's reasons for trying to make a deal. However, I fear we will not know precisely his motives until after he is out of office for several years, if even then.
