Wendi Murdoch was a close associate of Epstein and British fixer Ian Osborne, another Epstein associate.
I cannot find who introduced Kushner and Trump but Murdoch pushed them back together when they broke up over religious differences because Kushner is Jewish.
Kushner and his brother are also disciples of Alan Dershowitz who was Epstein's attorney and associate.
Kushner is seemingly always one degree of separation away from Epstein but has multiple publicly known ties to him.
Really gets the noggin joggin
Here's an FBI asset saying that Kushner is really the brains behind Trump's presidency.
https://www.justice.gov/epstein/files/DataSet%209/EFTA00090314.pdf