Iran says it was invited to join the Pakistan-Saudi-Turkish defense pact. Would Trump accept Tehran's regional legitimacy in exchange for Gulf stability – over Israeli and Gulf objections?

The invitation has not yet been officially confirmed by Iran's Foreign Ministry or by any of the three countries that are parties to the agreement.

Iran has reportedly received an invitation to join the Mecca Joint Defense Agreement, a military pact currently involving Saudi Arabia, Pakistan and Turkey. The alliance treats an…