The Conference of Presidents of Major American Jewish Organisations announced on Saturday that Israeli Prime Minister Benjamin Netanyahu will address American Jews tomorrow in an attempt to thwart the international nuclear agreement with Iran.
The organisation said Netanyahu's speech will be available on computers, on mobile phones and in synagogues across America.
"The issues involved with the Iran nuclear agreement are complex and of great consequence to the North American Jewish population," Stephen Greenberg, organisation chairman, said.
"We welcome this unique opportunity to present the prime minister, who has helped bring these vital issues to public attention," he added.
Earlier, the White House announced on Friday that President Barack Obama will deliver a speech in Washington on 5 August calling on Americans to support the deal.
White House spokesman Josh Earnest said Obama will deliver a speech at the American University where he will address the agreement with Iran, international security issues and the role of the US.
On Thursday Obama urged lobby groups in his country to raise their voices to confront those who seek to thwart the nuclear deal.