The agreement is likely to face questions in Congress over whether its nonproliferation safeguards are sufficient, as well as over Riyadh’s stated interest in acquiring nuclear weapons if Iran does, concerns over its human rights record and its ties with China.

Israeli officials and US politicians from both parties have voiced concern that a civilian nuclear project in Saudi Arabia could be converted to eventually develop nuclear weapons.

The Trump administration has made American nuclear technology a major priority with an $80 billion investment in the sector, including nearly $18 billion in loans to Westinghouse…