Sen. Ted Cruz Rafael (Ted) Edward CruzMurkowski: Supreme Court nominee should not be taken up before election Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE is planning to use a highway funding bill to add sink a long-term Iran nuclear deal reached earlier this month.

The Texas Republican, who is running for president, will offer an amendment to the bipartisan, six-year roads bill that "ensures no Iranian nuclear deal unless Iran recognizes Israel and frees American hostages," his office said on Tuesday.

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The Senate passed legislation earlier this year that allows them to review and vote the White House's final nuclear bargain with Iran. But, at the time, lawmakers rejected a Republican-led push to require Tehran to publicly support Israel and release three Americans currently being held.

Democrats, and the administration, argued that while the two provisions are important, they are separate issues. The measures also likely would have derailed negotiations on the long-term deal because Iran would have rejected them.

According to a copy of Cruz's amendment provided to The Hill, Obama will be prohibited from lifting or reducing statutory sanctions until Iran has met the two requirements.

Cruz and many other Senate Republicans have been vocally critical of the deal on Iran's nuclear program, reached earlier this month.

President Obama on Tuesday said that the administration is "not going to relent" on getting the three Americans released, or on trying to get the Iranian government to help locate former FBI agent Robert Levinson.

But Cruz slammed the White House, saying that it hasn't gone far enough.

The Texas Republican went a step further, suggesting that the Iran nuclear deal could lead to "tens of millions of Americans dying."

"The projections are that one nuclear head in the atmosphere over the Eastern seaboard could result in tens of millions of Americans dying," he told reporters, when asked what the greatest risk of the deal was. "That's what is at risk… that millions of Americans will be murdered by radical theocratic zealots."