Hunter Biden’s e-mail account appears to show that his father, former Vice President Joe Biden, used the pseudonym “Peter Henderson” when trading e-mails with his family, the National Pulse can exclusively reveal.

While Biden – or “the big guy” – has his real name attached to his private account for some time, it changed around early 2016, going from “Joseph Biden” to “Peter Henderson” in Hunter’s e-mails.

It is unclear whether this change was on Hunter’s end (on his devices) or on Joe’s, but Peter Henderson’s e-mails included messages such as “Keep in touch, Love Dad” and shared links – often about Hillary Clinton.

In Tom Clancy’s Jack Ryan series, “Peter Henderson” is the name of a KGB mole that infiltrated the United States government.