Despite the stated intentions of the Biden administration, there will be voices within the State Department, the CIA, the Pentagon and in the powerful US arms lobby urging a cautious approach towards the Saudis. If, for any reason, the ruling, largely pro-Western Al-Saud family were to lose power, there is a high chance it would be replaced by a hardline Islamist regime unsympathetic to the West. Diplomats like Dennis Ross know this.