Republican presidential candidate and New Jersey governor Chris Christie appeared at a news conference on August 25 alongside Jewish leaders, including Rabbi Shmuley Boteach, to encourage Congress to stop the Iran nuclear deal.

At the news conference at the Rutgers University Chabad House in New Brunswick, New Jersey, Christie entreated Sen. Cory Booker, a democrat from New Jersey and the former mayor of Newark, New Jersey, and the New Jersey congressional delegation to vote in opposition to the deal.

Booker has yet to announce his position on the Iran nuclear deal, which ends economic sanctions in exchange for Iran keeping its nuclear program in check. New Jersey’s other senator, Robert Menedez, announced on August 18 that he is against the deal.

“We now must count on the United States Congress to substitute for the moral clarity that this president lacks,” Christie said, according to The Associated Press.

“It is a bad deal,” Christie said of the Iran nuclear agreement, which was negotiated by the United States and five other world powers. “It is a deal that is not in the interest of the United States, and I think the folks in New Jersey have learned over the last six years that when I think something is a bad deal, I take action to try to change it.”

In September, Congress will vote on whether or not to approve the deal. President Barack Obama has promised to veto any legislation that will attempt to stop the deal.

At the news conference, Boteach, who is the founder of World Values Network, said that Booker is a “soul friend” and explained that the two of them had studied Torah together at Oxford University.