Ted Cruz appeared on "Hannity" tonight to react to the Stop Iran Deal Rally that was held today in Washington, D.C.

Cruz said the "catastrophic" nuclear agreement with Iran will literally make the Obama administration the world's leading financier of radical Islamic terrorism.

He said that the Democratic senators who voted for the deal must be prepared to look into the eyes of the hundreds of Americans and Israelis who will be murdered by Hamas, Hezbollah, the Houthis and other radical Islamic terrorists who will receive billions from the deal.

"If Iran acquires nuclear weapons, one EMP - one electromagnetic pulse - over the Atlantic seaboard, from one nuclear weapon, could kill tens of millions of Americans," Cruz said. "It's the biggest national security threat facing America."

Watch more above.

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