Trump's Iran plans driving EU toward Russia and China:
US President Donald Trump has refused to certify Iran's compliance with a landmark 2015 deal curtailing Tehran's nuclear program in exchange for sanctions relief.
Legislators now have a non-binding 60-day period to debate the accord and decide whether to re-impose sanctions, which would put the deal at risk.Despite the current deal only covering Iran's nuclear activities, Trump said he would ask legislators to find a way to punish Tehran for its ballistic missile program.
US allies, such as the UK and France, had also urged Washington to not jeopardize the deal, with analysts warning Trump's actions could affect his country's standing abroad.
"[Decertifying] would isolate the US from its transatlantic partners," said Matthew Moran, a reader in International Security at King's College London.
"Unilateral action to undermine a multilateral agreement would be very poorly received," he added, continuing: "It would undermine US credibility and discourage other countries from trusting in agreements negotiated with US."
Critics said Trump's actions put international relations at risk and could spell the end of a deal painstakingly negotiated for more than 10 years.
By withdrawing his endorsement, Trump has also shifted responsibility for the consequences that stem from potential sanctions on to Congress, according to analysts.
Sanctions not related to Iran's nuclear program remain unaffected by Trump's decision.