Israeli Prime Minister Benjamin Netanyahu said on Sunday he will discuss with Donald Trump the West’s “bad” nuclear deal with Iran after the U.S. president-elect enters the White House.

During the U.S. election campaign, Trump, a Republican, called last year’s nuclear pact a “disaster” and “the worst deal ever negotiated”. But the businessman-turned-politician has also said it would be hard to overturn an agreement enshrined in a United Nations resolution.

“Israel is committed to preventing Iran from acquiring nuclear weapons. That has not changed and will not change. As far as President-elect Trump, I look forward to speaking to him about what to do about this bad deal,” Netanyahu told the Saban Forum, a conference on the Middle East, in Washington, via satellite from Jerusalem.

Netanyahu has been a harsh critic of the nuclear deal, a legacy foreign policy achievement for President Barack Obama. But he had largely refrained from attacking the pact in recent months as Israeli and U.S. negotiators finalised a 10-year, $38 billion military aid package for Israel.