Senior congressional staff members met Thursday with White House officials over Iran.
"Congress has been an important partner in our efforts thus far," said Caitlin Hayden, a National Security Council spokeswoman. "We will continue our close consultation, as we have in the past, so that any congressional action is aligned with our negotiating strategy as we move forward."
Iran nuclear talks
The next round of talks between Iran and the P5+1 is scheduled to take place next month in Geneva. A statement after the previous round, last week, described the talks as "substantive and forward-looking."
The tone of the negotiations appeared to signal a shift, a departure from the diplomatic standoff that prevailed under former Iranian President Mahmoud Ahmadinejad. But details on the substance of the talks were scarce.
U.S. Secretary of State John Kerry said this week that the United States will not let up its pressure on Tehran, despite the recent diplomatic overtures between the two countries.
"We will pursue a diplomatic initiative with eyes wide open, aware it will be vital for Iran to live up to those standards other nations that have nuclear programs live up to as they prove those programs are indeed peaceful," he said in Rome during a meeting Wednesday with Netanyahu.
"No deal is better than a bad deal," Kerry said, echoing comments from Netanyahu. "But if this can be solved satisfactorily, diplomatically, it is clearly better for everyone."
Netanyahu, who has said Iran's nuclear program poses an existential threat to Israel, has listed a series of measures he says Tehran needs to undertake, including a prohibition on centrifuges that can be used to enrich uranium to a weapons-grade level.
Tensions over U.S. policy on Iran have emerged with another regional ally, Saudi Arabia. The Sunni nation is wary of any rise in influence by the Shiite theocracy of Iran across the Middle East and has pushed behind the scenes for greater U.S. involvement in Syria, whose President, Bashar al-Assad, is propped up by the regime in Tehran.