Democratic Congressman Jerrold Nadler of New York has announced he is backing President Obama's Iran nuclear deal.

Nadler says in a statement on Friday that the agreement "gives us the best chance of stopping Iran from developing a nuclear weapon."

Nadler's support comes after Obama appealed to him personally in a letter this week, defending the deal and pledging that the U.S. will continue to keep economic pressure on Iran and keep military options open.

Nadler's endorsement is also significant because Jewish lawmakers from New York are facing significant pressure to oppose the deal. The state's senior Democratic senator, Chuck Schumer, is opposed. Nadler becomes the first Jewish Democratic lawmaker from New York to announce he'll support the deal.