President Joe Biden visited his daughter-in-law Hallie Biden’s home on Sunday night, ahead of Hunter Biden’s trial.

The president’s visit raised eyebrows, given that Hallie is set to testify in Hunter’s upcoming criminal trial.

Sources close to the family revealed that Hallie, the widow of the president’s late son Beau Biden, is expected to testify as a witness in Hunter’s gun crime trial next month.

Biden’s visit has sparked numerous concerns, with some questioning whether the visit could be seen as an attempt to influence Hallie’s testimony.

Hunter is charged with three federal charges, which include purchasing a gun while using illegal narcotics and making a false statement in October 2018 on a form to buy a gun.

Prosecutors allege Hallie, who was in a relationship with Hunter at that time, was the one who found the weapon and threw it in a dumpster behind a market near a school. Hunter has, however, pleaded not guilty to the charges.

Hallie and Hunter entered into a relationship in 2017, two years after Beau died of brain cancer.

Daily Mail reports that Hunter’s ex-wife Kathleen Buhle and his ex-girlfriend Zoe Kestan will testify in the trial in addition to Hallie Biden. If convicted, Hunter faces up to 25 years in prison.

The trial is set to begin on June 3 in Wilmington, Delaware. Prosecutors had planned to use portions of Hunter’s book and laptop, including photos, to convince the jury that the president’s son was guilty of the charges leveled against him.

Meanwhile, Hunter’s defense team has filed a motion to exclude personal details from being presented to the jury. The personal details include child support proceedings in Arkansas, which is related to Hunter fathering a child out of wedlock with ex-stripper Lunden Roberts.

The legal team is also seeking to exclude Hunter’s discharge from the Navy and his alleged spending on adult entertainment, online chat rooms, or escort charges.

According to the New York Post, in addition to his gun crime trial, Hunter is set to stand trial in Los Angeles in September for failing to pay more than $1.4 million in federal taxes from 2016 to 2019. If convicted, Hunter could face a minimum of 17 years in prison.