The Republican Senator from Texas warned “We are repeating the mistakes of the 1990s with regard to North Korea… but here the dangers are qualitatively greater.”

What makes Iran more dangerous is that their country, which is led by Khamenei and the mullahs, are not rational actors, explained Cruz.

“If Iran acquires a nuclear weapon, the odds are unacceptably high that they will use that weapon,” he added.

Even If Iran doesn’t use their nuclear weapon, “the inevitable result will be nuclear proliferation throughout the Middle East,” he concluded.

Meanwhile Sen. Marco Rubio accused President Obama of pushing for a deal on Iran’s nuclear weapons to cement his own legacy back home.

“I think driving a lot of this is domestic politics — the ability to say at the end of his term that he was the one that got this deal done, that it was an achievement and that a future president was the one that lost that achievement,” Rubio said in an interview Tuesday on Fox News’s “Kelly File.”

“There’s no doubt that is part of the checklist as they look to build the legacy. Unfortunately, I think it leaves this country in a very dangerous position and our strongest ally in the Middle East, Israel, in an even more dangerous position,” he added.

“He thinks that if he can get a deal that delays it by five years, that’s a good thing,” Rubio said on Fox. “I think that the Iranians believe that Barack Obama and John Kerry are desperate for a deal, and I think that they sense it.