Washington- US President Donald Trump struck a blow against the 2015 Iran nuclear agreement on Friday, choosing not to certify that Tehran is complying with the deal in a major reversal of US policy.

“Based on the factual record I have put forward, I am announcing today that we cannot and will not make this certification,” Trump said at a White House event as he unveiled a tougher strategy against Tehran.

Trump made the announcement in a speech that detailed a more confrontational approach to Iran over its nuclear and ballistic missile programs and its support for extremist groups in the Middle East.

“Today I am announcing our strategy along with several major steps we’re taking to confront the Iranian regime’s hostile actions and to ensure that Iran never — and I mean never — acquires a nuclear weapon,” Trump said.

While Trump did not pull the United States out of the agreement, aimed at preventing Iran from developing a nuclear bomb, he gave the US Congress 60 days to decide whether to reimpose economic sanctions on Tehran that were lifted under the pact.

On the other hand, #US House Speaker Ryan says supports Trump’s decision to re-evaluate Iran Nuclear Deal, will work with administration to counter “Iran’s range of destabilizing activities.”