What Trump can or can't do about Iran

Caroline Glick's written about what we may be able to expect from Donald Trump now that he's been elected president, and that includes Iran:

To be sure, much is still unclear about Trump’s foreign policy. But here too, certain things are already known. Trump will vacate the US’s signature from the nuclear deal with Iran.

Trump will not be able to repair the damage the deal has already caused – at least not immediately. He will not be able to reimpose the multilateral and UN Security Council sanctions on Iran that the nuclear deal cancelled. Such a move will require prolonged negotiations and their conclusion is far from assured.

Trump will likewise be unable to take back the billions of dollars that Iran has already received due to the abrogation of economic sanctions and through cash payoffs from the Obama administration.

At the same time, from his first day in office, Trump will change the trajectory of US policy towards Iran. He will oppose Iran’s acquisition of nuclear weapons. He will oppose Iran’s rise to regional hegemony.

The best way to do that, whether the left likes it or not, is to topple the Iranian regime and ensure that human rights are restored. Everything the Carter administration allowed to be destroyed in 1979 when the ayatollah took over. No doubt it'll be difficult, but it can be done. Iran's autocracy has to be stopped.