WASHINGTON — President Obama on Friday compared tensions between the U.S. and Israel over the Iranian nuclear deal to a family feud and said he expects quick improvements in ties between the longtime allies once the accord is implemented.

“Like all families, sometimes there are going to be disagreements,” Obama said in a webcast with Jewish Americans. “And sometimes people get angrier about disagreements in families than with folks that aren’t family.”

The president’s comments came as momentum for the nuclear accord grew on Capitol Hill, where lawmakers will vote next month on a resolution to disapprove of the deal. Sen. Tom Carper, D-Del., became the 30th senator to publicly back the agreement, saying Friday that it was a good deal for America and for allies like Israel.

If Senate Democrats can amass 41 votes in favor of the deal, they could block passage of the disapproval resolution. Obama has vowed to veto the resolution if it passes, and Democrats could hold off Republican efforts to override his veto if they get 34 votes.

The looming congressional confrontation has sparked a summer of intense debate between supporters and opponents of the nuclear accord. The deliberations have also divided Jewish Americans.

The president encouraged skeptics of the agreement to “overcome the emotions” that have infused the debate and evaluate the accord based on facts.

“I would suggest that in terms of the tone of this debate everybody keep in mind that we’re all pro-Israel,” he said. “We have to make sure that we don’t impugn people’s motives.”

While Obama was measured in his remarks Friday, he has spoken passionately about the nuclear accord in the past, accusing those who oppose the deal of supporting war over diplomacy. Earlier Friday, his spokesman equated an anti-deal rally Republican presidential candidates Donald Trump and Sen. Ted Cruz plan to hold next month to a “pro-war rally.”