US policy toward Iran could take a turn for the worse from the perspective of Israel's government and Washington’s Gulf allies if Joe Biden is elected president in November, US Ambassador to Israel David Friedman said on Sunday, in the latest example of a sitting Trump administration official vouching for the current president’s policies ahead of his reelection bid.

“Joe Biden was part of the Obama administration, which negotiated and implemented the Iran deal, something that President [Donald] Trump — and I share his view — thinks was the worst international deal the United States has ever entered into,” Friedman said in an interview with the United Arab Emirates’ al-Ain news site.

“It created a pathway for Iran to gain a nuclear weapon. It did nothing to restrain Iran from its malign activity, whether supporting terrorists throughout Syria, Lebanon, Iraq, Yemen,” Friedman said. “It did nothing to restrain their building of ballistic missiles.”

Friedman went on, “If we continue on this path, we think Iran will ultimately have no choice but to end its malign activity. … I’d hate to think that a new administration would undermine that, but regrettably, if Biden wins, I think they might.”