Jared Kushner, tasked with brokering a peace deal between Israel and the Palestinians, changed the strategy of a two-state solution by recognizing Jerusalem as Israel's capital and moving the U.S. embassy there. His "peace plan" was so unbalanced toward Israel that it had zero chance of success. Kushner cared very little about most of the roles he assumed during the crazy Trump years, but he cared a lot about Israel. His lack of experience, his unbalanced view along with his self-righteous arrogance set the stage for this. With no viable approach for peace along with our withdrawal from the Iran nuclear deal, increased tensions and new alliances surfaced that were left to metastasize over the coming years. I realize this is just one piece of the puzzle and it is more nuanced than my description above, but let's not forget that the US strategy changed during the Trump years and the results were more instability and increased hostility.