Everything is driven by Obama's need to obtain a piece of paper, from an ayatollah in Iran, which "Secures Peace in Our Time". Like Chamberlain got from Hitler.
Obama wants a piece of paper from an ayatollah that they won't make a nuke (trust us).
These are Persians and they have been cheating each other on rug trades for several thousand years.
And, this fool of a president is going to get them to say they will stop work on a nuclear weapon, which they have been hard at for 30 years---and he will believe them! That's the deal he is desperately trying to make.
But, these Persian rug dealers can see how desperate he is, and so they are stalling while they figure out what else they want.
Most all else is a proxy to that. The real issue is what to do with Iran, which just snagged Yemen. And Russia whose clear plan is to collapse NATO while it has the good fortune of an empty suit in the White House.