A few commenters here are blind to the obvious. The support to Israel that is most critical is the withdrawal of any form of support for terrorist regimes. This includes Iran, and it royally includes Palestinians. And this is precisely where Obama failed, embracing terror anywhere, from money that was handed to the Palis disguised as “humanitarian aid”, to the billions of dollars in cash supplied to Iran. The Iran deal was a farce, and was never followed. Trump was right for withdrawing. All the violations had already been going on for long. That deal also expressly permitted any other forms of weapon development, and it was close to a guarantee that Iran would be in possession of nuclear weapons in 10 years or less. Blaming Trump for Iran violating its agreement is stupid and ignorant.
I believe that Biden will say all the right things to Israel in commitment of support. But he will commit the gravest of offenses to Israel when he turns to support the Palis. The Palestinian mission in life is to destroy Israel, something which they have never abandoned. Only Trump promised to withdraw support from that. Biden won’t, and that’s hs he will throw Israel under the bus.