Public support for the nuclear deal with Iran has dropped sharply from 33% to just 21% in two months’ time, according to a poll published yesterday by the Pew Research Center.

In mid-July, a week after President Obama announced the deal, 33% of the public approved of the agreement, while 45% disapproved and 22% had no opinion. Over the past six weeks, the share approving of the agreement has fallen 12 percentage points (from 33% to 21%), while disapproval has held fairly steady (45% then, 49% now). Somewhat more express no opinion than did so in July (22% then, 30% now). …

While the partisan divide over the nuclear agreement remains substantial, support for the deal has slipped across the board since July. Currently, 42% of Democrats approve of the agreement, while 29% disapprove and an identical percentage has no opinion. In July, 50% of Democrats approved, 27% disapproved and 22% had no opinion.

Republican support for the agreement, already low, has dropped even further (from 13% to 6%). Independents’ support for the agreement also has fallen (from 31% to 20%), although – as with Democrats – the share disapproving has held steady since July, at 47%.

Polling continues to show that the nuclear agreement is highly unpopular with the American public. Last month, a CNN poll found that 56% of Americans want Congress to reject the deal, while a Quinnipiac University poll showed that voters in the swing states of Ohio, Pennsylvania, and Florida oppose the deal by a 2-1 margin.

Two polls commissioned by The Israel Project in July – one of American Jews and one of all voters nationwide – showed that the more Americans learned about the deal, the less they liked it. A survey released today by Olive Tree Strategies on behalf of The Israel Project found that, of registered voters who support the nuclear deal, a majority reject efforts to support a filibuster in the Senate and prevent a congressional vote on the agreement. The Israel Project publishes The Tower.

The continued growing opposition to the deal prompted Democratic pollster Mark Mellman to observe yesterday, “Whatever the question used, there is no doubt momentum is with opponents, as opposition to the deal has grown.”

[Photo: Associated Press / YouTube ]