Iran can't be concerned with America's internal politics & squabbles. From Iran's point of view, the P5 +1 including the USA wanted Iran to go along with the nuclear deal in exchange for sanctions relief. Historically in the US, presidents tend to uphold international agreements such as the nuclear deal.
At the end of the day, the US, via Trump, back stabbed Iran. Trump withdrew from the nuclear deal not because it's beneficial for America or the average American, but rather because he's a puppet of the Rothschild family. In the 80's Trump's financial situation was extreme dire, with Trump facing an imminent bankruptcy. It was the Rothschild's who bailed him out. At this point he has no choice but to do what he's told.
Right now, with gasoline prices going through the roof, it's unlikely that Trump will cancel the waivers for the remaining nations buying Iranian oil. Keep in mind that Iran is selling a significant amount of oil through the backdoor, however if this trend continues to escalate, with additional pressure mounting on Iran, then Iran will eventually have no choice but to withdraw from the nuclear deal & take the North Korean route. It won't take Iran very long to begin enriching Uranium on a large scale & it's very unlikely that the US will do anything militarily. Despite all the threats, all the fire & fury bluff & bluster, the US has never acted military against North Korea. Iran won't be any different
In any case, in the long run, looking at the big picture, these sanctions may in fact end up being a blessing in disguise. It may sound ludacris at the moment however, look at Saudi Arabia for example. Despite all their efforts & lofty goals, their economy is completely dependent on oil revenues, hands down. Iran is also dependent on oil revenues however these sanctions are forcing Iran to cope with a reality without oil revenues. In the next 20-30 years, as electric cars become more & more popular, the demand for gasoline from the average consumer will slowly but surely diminish. Saudi Arabia produces 10 million barrels a day & they're pumping like there's no tomorrow with no tangible plans to wean off oil dependence. On the other hand these sanctions that are being imposed on Iran are forcing the nation to become less dependent on oil & focus on other potential sectors, alternative means of producing revenue. Basically in the long run, as global demand for gasoline diminishes, because of the pressures that Iran is currently experiencing, Iran will be in a much better position to cope than say a country like Saudi Arabia
On the other hand, Iran is only under threat because it is is involving itself in the Israeli/Palestinian conflict, rather than leaving it up to Arabs to figure out. Some will argue that Iran's current foreign policy is not in Iran's national interest. However at the end of the day, the ruling establishment have a die hard support base. Iran is over 90% Shia Muslim so when groups like Hezbollah plead for help, a large segment of Iranian society wants to respond. At the end of the day though, the whole "death to America" slogan & Ahmadinejad's speeches against Israel only assist Iran's enemies to antagonize & demonize Iran to the people in the west. Like Obama said, "death to America" doesn't create jobs. Look at the Americans, they ravage & decimate entire nations, however they don't send people out in public to burn flags & create a negative image. Even if the mullah's want to be successful in their endeavors, for example, helping the Palestinians, liberating Golan, etc the best way to move forward is to make moves, yet simultaneously avoid creating negative imagery / soundbites that can be used by Iran's enemies as ammunition against Iran & its economy / people.
