We are now closing the live blog on what has been a hectic and momentous day. Thanks for staying with us as events the unfolded.
RFE/RL's Washington bureau has been looking at how Barack Obama still has his work cut out to get congressional backing for the deal:
WASHINGTON -- With a landmark deal to curb Iran's nuclear program reached between Tehran and world powers, U.S. President Barack Obama's administration now faces potential hurdles in the U.S. Congress, where lawmakers offered reactions to the deal ranging from wariness to outrage.
Congress will now have 60 days to review the agreement, which would provide sanctions relief to Iran and was hammered out over more than a decade of negotiations and a grueling, 18-day final push in Vienna.
Obama says the deal will "prevent" Tehran from acquiring a nuclear weapon, though critics in Congress warn that it will only slow Iran’s nuclear development and embolden the Islamic republic to support terrorism and further destabilize the Middle East.
While Obama is expected to retain enough congressional support to move forward with implementing the agreement, both Republican and Democratic lawmakers voiced concerns that Iran would still be capable of acquiring a nuclear-weapon capability under the terms of the deal.
A key sticking point for some U.S. lawmakers is a provision in the deal under which Tehran would mothball most of its centrifuges used to enrich uranium, which can be used for nuclear energy or weapons, for the next 10 years.
After that period, critics say, Iran will be allowed to ratchet up its nuclear activity, thus potentially leading to a nuclear arms race in a region that is already a tinderbox.
"This agreement allows Iran to retain a vast enrichment capacity, to continue its research and development, and gain an industrialized nuclear program once key provisions of this agreement begin to expire in as little as 10 years," U.S. Representative Ed Royce (Republican-California) told a July 14 hearing of the House Foreign Affairs Committee, which he chairs.
"The key restriction, the ability to enrich [uranium] at high levels, begins to expire in as little as 10 years," Royce added. "That's 10 years. Most Americans will take three times longer to pay off their mortgage."
Representative Ted Yoho (Republican-Florida) said of the deal: "It's like giving an alligator more teeth and thinking now they may be nice to you."
Read the entire article here
Obama has been quick to try and soothe Israeli concerns over the deal (from our news desk):
U.S. President Barack Obama reassured Israeli Prime Minister Benjamin Netanyahu of the United States’ commitment to Israel’s security in a phone conversation on July 14, after Iran and major global powers sealed a landmark deal.
The White House said that Obama told Netanyahu that the Iran deal “will not diminish our concerns regarding Iran’s support for terrorism and threats toward Israel.”
Obama also told Netanyahu that the nuclear deal was in Israel's "national security interest."
U.S. Secretary of Defense Ash Carter is due to visit Israel next week. Obama said the visit is a reflection of the high level of security cooperation between the United States and Israel.
Earlier in the day Netanyahu called the deal "a bad mistake of historic proportions," adding that “Iran is going to receive a sure path to nuclear weapons.”