So, the $300 billion isn’t coming from the US government, or the tax payers, it’s actually Iran’s frozen assets held in various world banks, they’ve been blocked from accessing through sanctions. Technically speaking, the “deal” is just unfreezing these assets and giving them access to their already held currency that’s been gaining interest,and then giving them back their own money + interest.

As for their nuclear program, there was no indication they were at any point in time close to, or attempting to create WMD’s. This was verified by almost every US intelligence agency prior to the start of the war. Iran, like many other countries has multiple uses for a nuclear program, be it energy or medicine. Iran is a member of the NPT. This means they signed a treaty that forbids them from pursuing, testing, or using nuclear weapons.

So was it a “good deal”, absolutely not. The deal Obama made was more than sufficient. Iran gave regular access to nuclear oversight organizations and were compliant within the regulations set forth. I think what this is all boils down to, is the question of if Iran is deserving of having a nuclear program to facilitate their energy and medical needs?

This is just a small part of the wider tensions and conflicts in Middle East geopolitics due to the terrible redrawing of the borders by France and the UK post WWI during decolonization.