Throughout all these years, American politics had plenty of liberal Democrats who strongly supported Israel. We still do. But they’ve become outliers.

Put it this way: While states and congressional districts with liberal Jewish populations may continue to send pro-Israel liberals to Washington, trends suggest these pro-Israel liberal Democrats will decline as anti-Israel liberal Democrats take their place.

Already, the anti-Israel liberals seem to wield the real power. For example, what does the president’s approach to the Middle East and Israel say about the influence of New York’s senior senator, Chuck Schumer?

The simplest explanation is that President Obama is giving his party what most of its members want. And years from now, we are likely to look back at the Obama era as the moment in American history when the Democratic Party shifted, openly and decisively, against Israel.