Did John Kerry ask Iran to join the coalition against terror groups? The answer depends on whom you ask. Supreme leader Ayatollah Ali Khamenei says he did and that Iran declined. A US State Department spokesperson dodged the question:
“We’re not going to outline every discussion we, have, but to be very clear, we are not coordinating with, we do not want to coordinate with, we are not planning to coordinate with Iran in any way on Iraq, period,” Harf said.
So Khamenei must be right. Given Obama/Kerry's predilection for sucking up to our enemies we should probably be grateful that they didn't offer to hand over some long range missiles to sweeten the deal.