Unlike her husband, Nadine Menendez has lived a mainly private life. Investigators appear focused on the possibility that she or the senator received undisclosed gifts.
The exclusive Horatio Alger Association brought the justice access to wealthy members and unreported V.I.P. treatment. He, in turn, offered another kind of access.
Arnon Milchan, a movie mogul, billionaire spy and old friend of Prime Minister Benjamin Netanyahu of Israel, is a key witness. He gave the Netanyahus gifts, he said, sometimes at their request.