Obama, Trump To Biden: How Iran Got To Nuclear Threshold On The Watch Of 3 US Presidents

Key points

• Obama, Trump To Biden: How Iran Got To Nuclear Threshold On The Watch Of 3 US Presidents Written By, Last Updated: May 20, 2026, 12:18 IST How much uranium does Iran have?
• How did Tehran build nuclear capacity through Obama, Trump, Biden administrations in the US?
• What is the status amid US-Iran war, News18 explains Rapid Read Iran's Natanz nuclear facility.
• (AP File) Iran reached the nuclear threshold status — accumulating enough near-weapons-grade uranium to rapidly produce nuclear weapons — through a combination of Iranian defiance and shifting American diplomatic strategies across the Obama, Trump, and Biden administrations.
• Despite a devastating US-Israeli military strike on Iran’s primary underground enrichment complexes, Tehran has retained a resilient nuclear framework, maintaining an inventory of nearly 1,000 pounds.