“He sent billions in cold hard cash secretly to Iran”
It was Iran’s money. They were going to get it eventually. In exchange for the money, they agreed to give up their enriched uranium stockpiles and to stop enriching to weapons grade. And they actually did that. That is MUCH more important than anything else. And there had never been a better arms control agreement, with more safeguards. (I read the ones from the 1970s that we negotiated with the Soviet Union.)
Then comes Trump, who kills the Deal. As a result, Iran still keeps the money, AND gets to enrich uranium to weapons grade. Thanks to Trump, they may already have a nuclear bomb. Which the Deal had pushed off for at least 15 years.
The assumption by the Trumpies is that anything Obama did was bad for Israel and anything Trump does is good for Israel. The opposite is closer to the truth.