President Donald Trump is getting comfortable with the idea of taking out Iran's nuclear facility, the Fordo Fuel Enrichment Plant, a source familiar with the intelligence told ABC News.

It would not be just one strike on the facility, it would be several, the source said. There is now a movement to get ready for this, the source added.

There has been no response from the Iranians regarding ongoing nuclear talks, likely because of the way Trump demanded an unconditional surrender.

Trump is trying to engage the MAGA base with Vice President JD Vance to see what their reaction would be to American strikes against Iran.

The president has been briefed on security at the U.S. Army bases, since they could be incredibly vulnerable to retaliation from Iran.

The president's position on a potential attack comes as the Israelis discovered that they did not take out all air defenses in Iran as they had previously thought, adding to concern.

Following a meeting in the Situation Room on Tuesday, President Donald Trump told top advisers that he approved of attack plans for Iran that were presented to him, but said he was waiting to see if Iran would be willing to discuss ending their nuclear program, sources familiar with the matter told ABC News.

The news of the attack plan approval was first reported by the Wall Street Journal.

Trump has not made any final decision on the United States' involvement and he has yet to decide whether or not to give a final order and go through with the readied attack plans.

"As President Trump said himself today, all options remain on the table," White House Press Secretary Karoline Leavitt said.

As ABC News has reported, multiple sources have said that the president has been presented a range of options by his national security team that he is considering, including using U.S. military assets to strike Iranian nuclear facilities.

-ABC News' Mary Bruce, Rachel Scott and Katherine Faulders

As Israel and Iran continue to trade aerial strikes, an Iranian operation spokesperson released a stark message to Israel via state TV, saying Iran would continue to strike.

"The thunderous missiles of the IRGC's Aerospace Force will not let you spend a single moment outside your underground shelters," operation spokesperson Brigadier General Iman Tajik said in the message.

"It’s been days since you’ve seen the light of the sun. Rest assured, the sound of red sirens will not stop for a moment," the spokesperson said.

-ABC News' Will Gretsky

President Donald Trump is currently meeting with national security advisers in the Situation Room regarding the ongoing conflict with Israel and Iran, multiple sources confirmed to ABC News.

The meeting on Wednesday comes after Trump earlier in the day said he had not made a decision on the United States' involvement.

-ABC News' Katherine Faulders