What do you mean by leverage?
We basically are bribing Egypt not to get bellicose with Israel. I suppose that we are giving them military aid because basically i8t is a subsidy to US weapons makers. We give them our older weapons, or newer ones with lower technology, and our weapons sellers get paid. Egypt has no real enemies. It is not like they are going to be attacked by Chad, Libya or Sudan. And Egypt is one of very few countries that could be nearly totally devastated by just one bomb at the Aswan Dam.