Biden visits Hunter’s ex-girlfriend Hallie Biden ahead of her upcoming testimony at his gun trial

President Joe Biden visited the home of his daughter-in-law Hallie Biden Sunday night, just weeks before she is set to testify against first son Hunter Biden in his federal trial for alleged gun crimes. 

Hallie is the widow of Beau Biden and ex-girlfriend of Hunter. The visit by the president Sunday evening was at Hallie's home in Delaware, according to Axios reporter Alex Thompson and The New York Post. 

The White House did not give an explanation for the president's visit, which took place at around 8 p.m., also according to The Post.

Hunter Biden is facing two trials this year on gun and tax evasion charges.

Hallie was in a relationship with Hunter during the time of his alleged gun crimes and is expected to testify against him along with his ex-wife Kathleen Buhle, according to National Review.

Prosecutors are alleging that Hunter lied about his use of drugs when he applied to purchase a gun and that the gun was later illegally disposed of. Hallie Biden reportedly got rid of it in 2018.