Maybe. Saudi backed Israel during the war in Lebanon. But the Israeli’s disappointed everyone that time and the Saudi’s may be reluctant to back them again. Besides, Bush was in office then. There’s no telling what Zero would do if Iran were attacked.
I gotta admit that I was VERY embarrassed by the weak Israeli response in Lebanon in 2006, or whenever it was. How they could be so squeamish & not take total victory & destroy their enemy in Lebanon is beyond me. I hope they have learned something through that experience.