Martha Raddatz has new reporting on the concerns over the U.S. possibly using a 30,000-pound bomb never used in war, to destroy Iran's nuclear facility.

For a third day, Pres. Trump met with his national security team as he weighs possible U.S. direct action in Iran.

The stunning initial successes of Israel's surprise campaign against Iran's nuclear program and military leadership launched last Friday were evident within hours.

James Acton, co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace, spoke about rising tensions between Israel, Iran and the U.S.

A U.S. attack on Iran's key underground nuclear facility would not be a guaranteed success, according to a national security expert.

ABC News contributor Darell Blocker assesses rising tensions between Israel and Iran after Iran used a missile with multiple warheads in one of their strikes against Israel Thursday.

The White House says Iran has all it needed to produce a nuclear weapon in "a couple of weeks" once given the go-ahead from Ayatollah Ali Khamenei.

Known as the Joint Comprehensive Plan of Action, or JCPOA, the deal followed two years of negotiations during the Obama administration.

Aerial attacks between Israel and Iran continued overnight into Thursday, marking a seventh day of strikes following Israel's Friday attack.

Israeli officials say dozens of ballistic missiles were launched from Iran toward civilian centers across the country on Thursday, including the one that struck a hospital in southern Israel.

White House press secretary Karoline Leavitt, at the top of her briefing on Thursday, shared a message from President Trump regarding the Israel-Iran conflict.

President Donald Trump faces growing pressure at home and abroad as he weighs his options on whether to get the U.S. involved in the conflict between Israel and Iran.

Gas Buddy's Patrick De Haan discusses how U.S. gas prices could rise within the coming days as the conflict between Israel and Iran continues.

Katz spoke about Iranian Supreme Leader Ayatollah Ali Khamenei while speaking at the scene of the Iranian strike on Soroka hospital in Beersheba.

The cost of crude oil is up nearly 10% since Israel’s initial strike on Iran last Friday. ABC News’ Alexis Christoforous reports.

US gas prices could rise within days, industry analysts said.

Sources tell ABC News that President Donald Trump has approved attack plans for Iran but has not decided whether to move forward with them as the conflict between Israel and Iran rages on.

The cost of crude oil is up nearly 10% since Israel’s strike on Iran. ABC News Chief Business Correspondent Rebecca Jarvis tracks where prices are going and how you can save.

A source said he was getting "comfortable" with striking a nuclear facility.

ABC News' Linsey Davis is joined by Sen. Tammy Duckworth (D-Ill.), a combat veteran, who raises concerns about whether the situation could expand into a regional conflict.

For the second day in a row, Pres. Trump has gathered his national security team in the Situation Room as he decides if the U.S. should strike Iran.

Senate Republicans largely lined up behind President Donald Trump's handling of the conflict between Iran and Israel, and said they trust the president’s judgment.

Trump told top advisers he approved possible attack plans but has not yet given the order to carry out the strike.

President Donald Trump has not made any final decision on the United States' involvement and has yet to decide whether to give a final order, sources tell ABC News.

When asked if he gave Iran an ultimatum, President Donald Trump said he gave Iran the "ultimate ultimatum," but he would not share what the ultimatum was.

Ali Khamenei, who has led Iran for over 35 years, has gone into hiding in the wake of Israel's surprise attack on Friday.

Khamenei, who has led Iran for over 35 years, has gone into hiding in the wake of Israel's surprise assault.

ABC News’ Selina Wang, Marcus Moore and contributor Mick Mulroy discuss the escalating conflict between Israel and Iran.

A growing division among President Donald Trump's MAGA base has formed as the Israel-Iran conflict continues.

Ofir Akunis, the consul general of Israel in New York, discusses the escalating conflict between Israel and Iran, as well as the war in Gaza.

ABC News’ Ian Pannell reports on the barrage of missiles in the Middle East as Israel and Iran enter their sixth day trading attacks.

President Donald Trump posted on social media that the U.S. knows where Iran’s Supreme Leader Ayatollah Ali Khamenei is hiding and demanded the regime's "unconditional surrender."

Israel's escalating conflict with Iran over its increased nuclear has brought up speculation about the possible use of one of America's powerful weapons in the conflict.

Global affairs expert Dr. Qanta Ahmed discusses the escalating conflict between Israel and Iran.

ABC News’ Ian Pannell interviews Brig. Gen. Effie Defrin, Israel Defense Forces spokesperson.

ABC News’ Chief Global Affairs Anchor Martha Raddatz reports on what action the U.S. could take in the conflict between Israel and Iran.

The talk in Israel has turned to how to get the U.S. and its military on board.

U.S. officials signaled Tuesday that the next 24 to 48 hours would be critical.

Lawmakers are introducing resolutions aimed at preventing the U.S. from getting involved with Israel's military campaign against Iran.

Israel's escalating conflict with Iran over its increased nuclear as brought up speculation about the possible use of one of America's powerful weapons in the conflict.

In the Situation Room, Pres. Trump met with his national security team for over an hour amid questions about what the U.S. will do.

Sirens were activated in several areas across Israel following the identification of another round of missiles launched from Iran, the Israel Defense Forces said.

Trump's meeting with advisers in the Situation Room was underway on Tuesday afternoon, a White House official confirmed, as Israel and Iran continue to trade strikes.

The status of Iran's nuclear capability is surrounded by mystery even as that is a central question in the Iran-Israel conflict.

Caroline Zier, former deputy chief of staff to the secretary of defense, discusses the ongoing conflict between Israel and Iran as strikes continue between the two countries.

Vance defends Trump after supporters like Tucker Carlson and those in the MAGA base's calls to stay out of the Israel-Iran conflict.

President Donald Trump wrote a threatening post on his social media platform saying the U.S. knows where Iran’s Supreme Leader Ayatollah Ali Khamenei is hiding, calling him an "easy target."

Reza Pahlavi says there's "no hope for a better future as Iranians" as long as the current regime is in place.

President Donald Trump cut short his trip to Canada to return to Washington, D.C. on Monday. The White House cited Middle East tensions as part of the reason for his departure, offering no specifics.

Iran launched another round of missiles towards Tel Aviv, just hours after an Iranian state TV news live broadcast was interrupted by Israeli strikes in Tehran on Monday.