My Dad and Chuck Schumer

FILE - In this May 5, 2015, file photo, Sen. Charles Schumer, D-N.Y., speaks to reporters on Capitol Hill in Washington. Schu
FILE - In this May 5, 2015, file photo, Sen. Charles Schumer, D-N.Y., speaks to reporters on Capitol Hill in Washington. Schumer wants airlines to scrap a proposal to reduce the allowed size of carry-on luggage. He planned a news conference Sunday, June 14, 2015, to warn travelers that a 20 percent reduction would force them to pay more for check-in fees or spend money on new luggage. (AP Photo/Brett Carlsen, File)

My father, Victor Goldberg was in 195th Field Artillery Battalion during World War Two, landing on Utah Beach nine days after D-Day. Like other members of his unit he was given Battle stars for being in five bloody battles against the Nazis in Normandy. Later he was among those American troops who liberated the Buchenwald concentration camp in Germany.

For the last several years before he passed away my Dad and I would watch the political TV shows every Sunday and talk about the issues of the week. He would have been deeply saddened by the announcement this past week of opposition to the Iran deal by Senator Charles Schumer and Representative Nita Lowey, two ostensibly liberal Jewish Democrats whom he had supported and voted for. He was an FDR liberal. He loved Israel and he had a bias in favor of Jewish politicians because he felt a kinship with them. At the same time, from personal experience he knew the horrors of war. He believed in war only as a last resort and he would have loved President Obama's speech at American University laying out the rationale for the deal.

Schumer and other renegade Democrats opposing their president have talking points filled with nuclear jargon. But no matter how they spin it, they are claiming that Democratic foreign policy leaders who they support on every other subject are wrong -- and that Dick Cheney, and the Republican presidential candidates are right.

The most likely explanation for Schumer's behavior is that as someone whose public and private identity has been so supportive of Israel he has been influenced by the implacable opposition to the deal by Israeli Prime Minister Benjamin Netanyahu.

Schumer, Lowey, Brad Sherman and other Jewish Democrats who are opposing the president seem oblivious to the fact that Likud propagandists have tried to create a radically different definition of the phrase "pro-Israel" from what it meant in the first half century after the war against the Nazis.

For decades the defining "pro-Israel" issues at the Congressional level were foreign aid and military support to help defend Israel. For many Americans, especially Jews like my Dad; there was a powerful post-Holocaust obligation to the Jewish people. Israel also supported American goals in the cold war and in the oil economy.

But after Netanyahu became Prime Minister, he tried to transform the definition of "pro-Israel" to include a much larger influence of the overall foreign policy of the United States, a radical departure from previous Israeli regimes. This became vividly clear during the debate leading up to the Iraq War. American acolytes of Netanyahu and his party were stridently supportive of President Bush in pursuit of that disastrous mistake.

In 1996, five years before 9/11, a memo was written to newly elected Prime Minister Netanyahu by neo-con Richard Perle (who along with co-author Douglas Feith would later serve in the Bush administration at the time of the Iraq War). Perle advocated a new hawkish strategy for Israel called "A Clean Break," writing " this effort can focus on removing Saddam Hussein from power in Iraq -- an important Israeli strategic objective in its own right." In private meetings with American Jews, Netanyahu often lamented the fact that the first Gulf War had not "taken out" Saddam.

My Dad's hero Senator Ted Kennedy and twenty-two other Democratic senators and one hundred and thirty three Democratic House members- a majority of Democrats at that time-believed correctly that Dick Cheney and his minions manipulated "intelligence, " and they voted against the war. History has proved them right.

To this day, the American people do not know why we went to war against Iraq. All we know is that the talking points the pubic was fed by the Bush administration and their neo-con chorus were false. Similarly we have no idea what the real reason is that Netanyahu and his supporters are against the deal with Iran that every other ally of the United States supports.

In recent years, in another radical departure from the past, the Netanyahu government has taken partisan sides in American politics identifying increasingly visibly with Republicans, culminating in the unprecedented speech that Netanyahu made to a Republican controlled Congress to criticize a Democratic president's foreign policy.

President Obama campaigned explicitly on changing the mind-set that led to the Iraq War and on negotiating, if possible, with Iran. He is not the one who has played "bait and switch."

My Dad would be relieved to know that the Schumer/Likud definition of what it means to be "pro-Israel" is not shared by most American Jews. Many prominent Jewish Democrats support the deal including Senators Barbara Boxer, and Bernie Sanders. A recent poll by the Jewish Journal asked whether Congress should "vote to approve or oppose the deal." American Jews favor approval over disapproval by a margin of 53 percent to 35 percent.

Precisely because the Iraq war was so awful and the arguments for it so preposterous, it is arguable that President Obama won the Democratic nomination in 2008 primarily because he had opposed the Iraq War. Modern day Democrats who think that actual Democratic voters have somehow warmed up to the views of neo-cons are deluding themselves. Moreover, it is not a stretch to imagine that upwards of 90 percent of non-Jews who vote Democratic support the president. Schumer et. al. must be assuming that their vote on the Iran deal will be quickly forgotten. It wont be.

Recently, a minister in Netanyahu's coalition government, Religious Services Minister David Azoulay from the Orthodox Shas party claimed on Israeli radio that Reform Jews aren't "real Jews. " Netanyahu knew that this was not good politics at this time so he publicly disagreed with Azoulay but tellingly kept him in his government.

There is an American version of Azoulay's bigotry coming from some Jewish organizations suggesting that people like my Dad and the rest of our family are not "real Jews" if we don't support Netanyahu and oppose the president we twice voted for. Greg Rosenbaum, head of the National Jewish Democratic Council which supports the deal, writes "I and members of this organization have personally found ourselves being called 'Nazis' and 'kapos,' told that we are enemies of the Jewish people and leading Israel to another Holocaust."

Those few Democrats who play along with the Likud either for ideological reasons or to get the benefit of neo-con billionaires are in for a rude awakening. Despite a vicious well-funded PR campaign funded by Netanyahu supporters smearing and lying about President Obama during his first term, he still received 69 percent of the Jewish vote for re-election. He is the only Democrat since FDR to win a majority of the overall popular vote twice.

It's not realistic to expect politicians who you support to agree with you on all issues. But the choice between this deal and a war with Iran is one of such extraordinary consequence that it is and will remain indelible in the minds of the base of the Democratic Party. I hope that progressives mount primary challenges to every single Democrat who votes to oppose the president on this deal.

But the morality of avoiding another needless and horrible war is more important than politics. In the name of my father, I have a plea to make to those Democrats who have veered into the morass of intellectual and moral contradictions epitomized by former Senator Joe Lieberman. Search your souls and change your mind. Even if you vote against the bill, do not vote to overturn our president's veto. That, as my Dad would say, would be a shande.

Danny Goldberg is the author of the books "How The Left Lost Teen Spirit," and "Bumping Into Geniuses" and is a member of the Board of Directors of Americans For Peace Now.