Democratic Rep. Adam Schiff Adam Bennett SchiffChris Matthews ripped for complimenting Trump's 'true presidential behavior' on Ginsburg Trump casts doubt on Ginsburg statement, wonders if it was written by Schiff, Pelosi or Schumer Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (Calif.) on Tuesday blasted President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's decision to withdraw the U.S. from the Iran nuclear deal, calling it a mistake of "historic proportions."

"Scuttling an agreement that had halted the Iranian nuclear program and put in place an intrusive regimen of inspections without a credible Plan B is a mistake of historic proportions," Schiff, the top Democrat on the House Intelligence Committee, said in a statement.

Trump officially announced Tuesday that the U.S. will not renew sanctions waivers for Iran under the 2015 deal, saying the agreement failed to address the country's ballistic missile program and did not give U.S. allies enough access to certain nuclear facilities.

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The president had long criticized the Obama-era accord, which offered sanctions relief to Tehran in exchange for restrictions on its nuclear program. He announced his decision to withdraw despite the urging of European allies such as France and the United Kingdom to stay in the agreement.

Schiff, a vocal Trump critic who previously endorsed the multination Iran agreement, said that while the deal may not have gone far enough, "its virtues always outweighed its shortcomings" by making Iran dispose of key nuclear materials and processing materials.

The Democratic lawmaker argued that Trump's decision to pull out has "weakened our credibility on the world stage in a way that will be difficult to repair."