Sensing trouble, the Obama campaign and Democratic Party leaders have mobilized to solidify the president’s standing with Jewish voters. The Democratic National Committee has established a Jewish outreach program. The campaign is singling out Jewish groups, donors and other supporters with calls and e-mails to counter the Republican narrative that Mr. Obama is hostile to Israel.

Among those efforts is a multi-page set of talking points circulated last Friday with the title, “President Obama’s Stance on Israel: Myths vs. Facts.” David Axelrod, a close Obama adviser, has sent e-mails to Jewish voters, pointing them to a speech by the Israeli defense minister, Ehud Barak, praising Mr. Obama and saying he had deepened the military cooperation between the United States and Israel…

“We just have a lot of people lying about the president’s record, and we have to push back on it,” said Representative Debbie Wasserman Schultz of Florida, who is chairwoman of the Democratic National Committee. “The president has a rock-solid record on Israel, and because we’re going to convey that in a detailed way, we’re going to get an overwhelming majority again.”…

Still, American Jews are clearly less enchanted with Mr. Obama than they were in 2008, when nearly 8 out of 10 voted for him (in a Gallup poll last July, the most recent month for which data was available, his approval rating was 60 percent). Jewish lawmakers have been warning the White House that this disaffection could hurt the president in turnout, fund-raising and enthusiasm.