Sen. Ted Cruz (R-Texas) spoke forcefully against the Iranian nuclear deal in a rally on Capitol Hill this afternoon. 

Cruz recalled that Iran's Revolutionary Guard, led by Gen. Qassim Soleimani, sent IEDs into Iraq that ended up killing and wounding hundreds of American soldiers.

Cruz asked Democrats how they could approve lifting sanctions and handing over $100 billion to Soleimani.

"Tell me, if you're a Democratic senator, how you look a mom in the eyes and say, 'I voted to lift sanctions on the man who murdered your son when he was defending this nation," he said.

The GOP presidential candidate warned that if the deal is approved, "we know to an absolute certainty people will die."

"Americans will die. Israelis will die. Europeans will die," said Cruz, questioning what Usama bin Laden could have done if he was given $100 billion.

He added that Iran's supreme leader, Ayatollah Ali Khamenei, is a "theocratic, homicidal maniac who hates America every bit as much as bin Laden did."

Watch a portion of his remarks above and hear from Sen. Cruz tonight at 10p/1a ET on "Hannity."