I don't remember a call between Dar & the watcher either. What I reckon so far is:
- The PE campaigned on a 'no more war' & 'no more fear' platform. She won the election so obv a lot of people agreed with her (let's not mention the Electoral College)
- Dar has had enormous influence & power since the 'War on Terror' started.
- So too has the military industrial complex - there is a huge amount of money at stake.
- Same for the Dept of Defense, power, budgets, influence.
Think at higher levels they're all complicit.
Getting Carrie's client off (also think Dar sent the NSA recording to her) then having him responsible for the bombing played on people's fears, made the PE look wrong & weak (the safe house, lack of contact) & made the PE doubt Carrie's assessment.
Iran & North Korea are seen as the US's biggest threats so a scheme (the Iranian/Mossad agent) to suggest they're in it together not only refutes the status quo of Iran holding to the deal but weakens the position of all those who backed it. I.e. Saul, PE, Carrie.
Dar targetting Carrie through Frannie is partly personal I agree but effectively weakens her mental state, compounding the belief she's unreliable even if she does figure things out.
Wouldn't be surprised if Dar tipped off the reporters about Carrie's & esp Quinn's location, knowing things would kick off. And I still think he got Astrid involved but think she's on Quinn's side, not Dar's.
Here endeth the sermon summary. As ever (6 seasons in) we'll be spending ages posting "Ah, so it wasn't that/him/her/why" and "Heh, what/why/who?" 