Uranium stockpile: Iran has agreed to slash its stockpile of enriched uranium by about 98 percent, from about 10,000 kilograms to less than 300 kg over 15 years. That uranium must be kept at a low-enrichment level — at 3.67 percent or less — that would prevent it from being used in a weapon over that period.

Centrifuges: The deal cuts Iran’s nuclear centrifuges by about 66 percent over 10 years, from about 20,000 to 6,000. Those centrifuges are used to isolate the isotopes needed to develop nuclear-grade materials.

Heavy water reactor: Iran will rebuild its Arak heavy water reactor so that it can no longer produce weapons-grade plutonium. The country also won’t be allowed to build a new heavy water reactor for 15 years.

Breakout time: The deal would extend Iran’s breakout time for a nuclear weapon — the time it would need to amass enough nuclear material to build a bomb — to one year, according to the White House. Iran has also agreed to restrictions on other activities required to turn nuclear material into weapons.

Nuclear weapons: Iran underscored a promise to never seek a nuclear weapon, giving the international community more leverage if it violates that pledge. Iran has also agreed to issue a statement that accounts for military aspects of the nuclear program.

House Speaker John Boehner blasted the deal as “unacceptable,” saying that if it is “as bad a deal as I think it is at this moment, we’ll do everything we can to stop it.”

He warned it would only “embolden” Iran and even could trigger a global nuclear arms race.
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Republican Senator Tom Cotton, who penned an explosive letter in March to Iran’s leaders, described the deal as “a terrible dangerous mistake” that will pave the way for a nuclear Iran.

“The American people are going to repudiate this deal, and I believe Congress will kill the deal,” he told MSNBC.

The top Democrat on the Senate Foreign Relations Committee, Ben Cardin, said Congress must “vigorously and judiciously review” the accord.

“There is no trust when it comes to Iran,” Cardin said.

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Senator Lindsey Graham, a 2016 presidential candidate, said Obama and Secretary of State John Kerry have been “dangerously naive” in their dealings with Tehran.

“You have taken the largest state sponsor of terror on the planet and given them money to increase their terrorist activities” by funding groups like Hezbollah and Hamas, as well as Syrian President Bashar al-Assad, Graham said.

“Israel is not bound by this deal with Iran, and Israel is not bound by this deal with Iran because Iran continues to seek our destruction,” Netanyahu told reporters before a meeting of his security cabinet.

“We will always defend ourselves.”

Defense Secretary Ash Carter reassured Israel and other allies in the Middle East on Tuesday that the U.S. would utilize the "military option" against Iran if needed.

"We remain prepared and postured to bolster the security of our friends and allies in the region, including Israel; to defend against aggression; ensure freedom of navigation in the Gulf; and check Iranian malign influence," Carter said in a statement.

"We will utilize the military option if necessary," he added.