The implementation of the Iran nuclear deal earlier this year appears to have done little to allay the American public’s concerns about a nuclear-armed Iran, a new Gallup poll released on Thursday showed.

According to the survey, 57 percent of U.S. adults disapprove the international accord that was signed with the Iranian regime last July, while only 30 percent approve of the agreement. Fourteen percent have no opinion.

Approval of the deal negotiated by the Obama administration is at 51 percent among Democrats, while 38 percent disapprove. Among Republicans, only 9 percent approve of the deal, 80 percent disapprove.

Strong disapproval may have to do with that fact that 75 percent of U.S. adults see Iran as a critical threat to the vital interests of the U.S. in potentially developing nuclear weapons in the next 10 years, the survey showed.

At least two Republican presidential candidates – Ted Cruz and Marco Rubio – have vowed to disavow the deal on their first day in the Oval Office. The remaining candidates are all opposed to the deal.