Senator Chuck Schumer, the New York Democrat who is in line to become the next leader of the Democrats in the senate after the retirement of Sen. Harry Reid, has announced that he will not support the nuclear deal with Iran.

“After deep study, careful thought and considerable soul-searching, I have decided I must oppose the agreement and will vote yes on a motion of disapproval,” Schumer wrote in a 1,600-word post on the website Medium.

“I will vote to disapprove the agreement, not because I believe war is a viable or desirable option, nor to challenge the path of diplomacy,” he added later. “It is because I believe Iran will not change, and under this agreement it will be able to achieve its dual goals of eliminating sanctions while ultimately retaining its nuclear and non-nuclear power.”

Sen. Schumer also said he would vote to override a veto by President Obama to Congress voting to reject his Iran deal.

Schumer is the latest Jewish member of Congress to oppose the deal.  Last week, Rep. Steve Israel of New York, most senior Democrat in the House, said he would oppose the deal.  The ranking Democrat on the House Appropriations Committee, Rep. Nita Lowey of New York, also said she would oppose the Iran deal.

California Rep. Adam Schiff, ranking Democrat on the House Intelligence Committee, downplayed the announcement of Schumer and other Jewish New York congressional members whose constituents see a connection between terror attacks in New York City and Iran’s sponsorship of terrorism around the world.

“There was no one in their constituency who had not been directly impacted by the attacks of 9/11,” Mr. Schiff said of New York lawmakers, “It had a real impact in the New York Jewish community.”