>> Donald Trump's early choices for key national security posts, laying the ground for a much tougher policy toward Iran than under President Obama. Reuters Pentagon correspondent, Phil Stewart.>> So what we're seeing so far with Donald Trump is that his initial two picks, Michael Flynn for National Security Advisor and Mike Pompeo for his CIA Director, show a very strong leaning toward Trump's own reservations about Iran and his concerns about the Iran deal, which he said he would kind of tear up if he became president.
>> We've been humiliated by the Iran deal.>> That deal lifting crushing sanctions to avoid a nuclear armed Iran. On the trail, Trump railed against the deal and he faulted Obama for not doing more after Iran detained US sailors who strayed into Iranian waters.>> They took our sailors
>> Now that he's considering Jim Mattis, a retired marine general for the Defense Secretary. We could kind of see an alignment of top advisers who have all expressed wariness, concerns about Iran and Iran's place in the Middle East. All of them would point out that Iran sees itself as a revolutionary power and has been involved in efforts to destabilize or create disturbances among many US allies in the region and this is also seen in places like Yemen.
Now, Yemen has had a civil war going on. The internationally backed government challenged by Houthi forces that are being armed, many experts say, by Iran. So we could see an increasingly assertive Trump administration take aim at Iranian activities, both in the region more broadly, and taking a much closer look at any potential violations that Iran might have toward the nuclear agreement.
>> On Wednesday, Iran warned it would retaliate if a bill on the House extending US sanctions against Iran goes through. Obama saying he would veto the bill