Michele Bachmann: Obama's deal with Iran 'virtually guarantees' World War III
Then-Rep. Michele Bachmann (R-MN) during a CNN interview on July 15, 2014.

Former Rep. Michele Bachmann (R-MN) denounced the proposed nuclear deal between the U.S. and Iran in a radio interview on Wednesday, calling it "literally the worst part" of President Barack Obama's time in office.

"This puts Iran in a position where they would have the firepower to be able to take out not only Israel, but they would have the firepower to use intercontinental ballistic missiles against the United States with nuclear-tipped warheads," she told Florida Live host Dan Maduri. "This virtually guarantees, in my opinion, a World War III. I think that alone would qualify Barack Obama for being the worst president that the United States has ever had to endure."

Reuters reported that the proposal, crafted by not only the U.S. and Iran but China, France, Germany, the United Kingdom and Russia, garnered support from 31 percent of Republicans in a recent survey. Bachmann, however, said it demonstrated that while Americans are allies to Israel, Obama himself is not.

Obama addressed that conservative criticism in an interview with NPR on Tuesday, saying the proposed deal would cut off Iran's path to a nuclear weapon "we can't bank on the nature of the regime changing."

"We have been steadfast in the defense of Israel when it comes to them defending themselves even when there have been periods of great international controversy," Obama said. "So what I would say to the Israeli people is you are right to be suspicious of Iran. There is no reason why you should let your guard down with respect to Iran. We have to make sure that Israel has the capabilities to protect itself, not only from Iran but also proxies like Hezbollah, but ultimately Iran is deterrable."

But Bachmann accused the president of wanting to "elevate" Iran for no reason.

"It's the worst thing that could happen. This literally is the worst part of the Obama presidency," she said. "You can get economics wrong and you can turn it around. We saw Ronald Reagan do that in a remarkable way. Where we do have problems decades into the future are disasters with foreign policy."