President Potato claimed in December that he wanted to prevent Iran from getting nukes. He decided that the best way to do that was to release all of the sanctions and restrictions on Iran’s nuclear program.
Iran has never really hidden the fact that they want nuclear weapons, and will not hesitate to use them on Israel as soon as they acquire them. The Ayatollah is the same guy who regularly says “Death to America.”
Keep in mind that Biden and the Democrats have repeatedly said that they cannot envision a scenario where the US would use nuclear weapons.