Joe Biden unloaded on a reporter after being asked about his son Hunter’s paternity test results that revealed he was the father of a child in Arkansas.

On Wednesday, the results from a paternity test revealed that Hunter fathered a son with a woman in Arkansas around the time he was dating his brother Beau’s widow.

During a press gaggle on Thursday, Biden, 77, was asked to comment on the court filing. Fox News reporter Peter Doocy asked, “I’m wondering if you have a comment on this report and court filing from Arkansas that your son Hunter made you a grandfather again.”

Biden was outraged. He dismissed the question, responding, “No. That’s a private matter. You’re a good man. You’re a good man. Classy.”

Hunter Biden, 49, agreed to take a DNA test to reaffirm his denials that he fathered a child with 28-year-old Lunden Roberts. Robert’s child made Biden a father of four. His other children, Naomi, 24, Finnegan, 19, and Maisy, 18, were from his first marriage with Kathleen Buhle.

In the court filing, attorneys noted that the elder Biden was running for president.

“Baby Doe’s paternal grandfather, Joe Biden, is seeking the nomination of the Democratic Party for President of the United States of America (he has already filed for the March 2020 Arkansas primary). He is considered by some to be the person most likely to win his party’s nomination and challenge President Trump on the ballot in 2020,” the filing said.

[Read more: Hunter Biden-linked company received $130M in special federal loans while Joe Biden was vice president]

