On Tuesday, President Barack Obama announced a deal with Iran for that country to curb its nuclear program in exchange for the lifting of billions of dollars in international sanctions. The same day, a national poll released by Monmouth University revealed the majority of Americans don't trust Iran.

President Barack Obama, standing with Vice President Joe Biden, delivers remarks in the East Room of the White House in Washington, Tuesday, July 14, 2015, after an Iran deal is reached. Obama says every path to a nuclear weapon will be cut off from Iran under a historic agreement announced in Vienna. (AP Photo/Andrew Harnik, Pool)
President Barack Obama, standing with Vice President Joe Biden, delivers remarks in the East Room of the White House in Washington, Tuesday, July 14, 2015, after an Iran deal is reached. Obama says every path to a nuclear weapon will be cut off from Iran under a historic agreement announced in Vienna. (AP Photo/Andrew Harnik, Pool)
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The survey was conducted before the agreement was reached.

"Forty-nine percent of Americans said they thought it was good idea to get Iran to the table. Just 36 percent said it was a bad idea," said Patrick Murray, director of the independent Monmouth University Polling Institute. "Fifty-percent have no trust at all that Iran will live up to its part of the bargain. 35 percent have a little trust and just five percent trust Iran a lot."

Almost three-quarters of Americans said they were aware of the U.S.-Iran negotiations. Thirty-three percent said they've heard a lot about the talks and 41 percent have heard a little. Gov. Chris Christie has been following the negotiations and the GOP presidential candidate was not pleased with the end product.

"The president is playing a dangerous game with our national security, and the deal as structured will lead to a nuclear Iran and, then, a nuclearized Middle East. The deal threatens Israel, it threatens the United States, and it turns 70 years of nuclear policy on its head," Christie said in an emailed statement.

In the email, Christie went on to urge congress to reject the deal. The poll also asked Americans their thoughts on their commander-in-chief and the results were positive, albeit not overwhelmingly.

"Nationally, President Obama's job rating has ticked up slightly. It's now at 47 percent approve to 46 percent disapprove," Murray said. "A month ago it was 44 percent to 46 percent. This is the first time in a long time that he's had a nominally positive rating where he's had more approval than disapproval."

A well-received trade deal and the U.S. Supreme Court's decision to uphold the Affordable Care Act -- Obamacare -- were cited by Murray as two reasons for the president's bump in the poll.

The survey was conducted by telephone from July 9 to 12, 2015 with 1,001 adults in the U.S. The sample has a margin of error of + 3.1 percent.

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