Hunter Biden's exes to testify in gun trial: The list of lovers prosecution is set to call, including his brother's widow

Hunter Biden's gun trial will feature some scintillating testimony from his ex-lovers that could reveal the personal details of his drug use when he purchased a firearm.

The president's son's ex-wife Kathleen Buhle, his ex-girlfriend Zoe Kestan and his deceased brother Beau's widow Hallie Biden - whom Hunter had a romantic relationship with - all could be called to testify, according to court papers filed Monday.

Hunter Biden is charged in Delaware with three charges related to illegal possession of a gun. If convicted, he faces up to 25 years in prison. He has pleaded not guilty. 

Though the court filing does not identify some of his former muses by their names, it does clarify that 'Witness 1 was previously married to the defendant' and that 'she would check his vehicle from time to time because she did not want their children in a vehicle with drugs.'

Zoe Kestan, one of Hunter Biden's ex-girlfriends, is expected to testify at his gun trial. She allegedly told prosecutors he smoked crack 'every 20 minutes'

Witness 3, according to the filings 'was in a romantic relationship with the defendant in October 2018, and before and after.' 

And it also references another woman who 'was previously in a romantic relationship' with Hunter and 'observed the defendant using crack cocaine frequently—every 20 minutes except when he slept.'

Witness 1 is alleged to be Buhle, 2 to be Hallie Biden and 3 to be Kestan. 

On Monday, U.S. District Judge Maryellen Noreika rejected throwing out the federal gun case against the president's son, 54, clearing the way for the trial to start June 3.

It's expected the trial will last up to nine days.

Also next month, Hunter Biden could go to trial on the opposite coast for the case involving tax evasion. That trial is scheduled to start June 20. 

If convicted in the case, Biden faces a maximum of 17 years in prison.

The timeline means if convicted at either trial, the president's son could face prison as his father runs for a second term in the White House. 

Biden aides and family members are worried about the weight the trial will place on the president according to reporting by POLITICO. 

It also said the president has expressed fear that his son may serve prison time.

Zoe Kestan attends American Gods & Now Apocalypse Live Viewing Party At #TwitterHouse at Lustre Pearl on March 10, 2019 in Austin, Texas

Kathleen Buhle (right) is also expected to testify in Hunter Biden's case. Above she is pictured with her and Hunter Biden's daughter, Naomi Biden 

Kathleen Buhle stands outside the Vietnam Cafe as she attends a lunch with President Joe Biden and family in Philadelphia, Monday, May 15, 2023, after the President attended a commencement ceremony for his grand daughter Maisy Biden, Buhle's daughter, at the University of Pennsylvani

Hallie Biden, widow of Beau Biden - Hunter's brother, could also be brought to the stand. After Beau passed away Hallie and Hunter embarked on a romantic relationship

A picture from Hunter Biden's laptop showed the now 53-year-old first son posing nude with a firearm

Hunter Biden is charged in Delaware with three counts in the gun related case.  He is accused of lying about his drug use in October 2018 on a form to buy a gun that he kept for about 11 days. 

Special Counsel David Weiss brought the gun charges in September, when Biden became the first child of a sitting president to be indicted. 

Hunter Biden has acknowledged struggling with addiction to crack cocaine during that time, but his lawyers argued he did not break the law. 

A federal appeals court last week also said the case could move forward to trial. 

Hunter Biden's efforts to have the other criminal case he faces in California involving tax allegations scrapped have also failed.

The investigation into the president's son looked like it would be wrapped up last year with a plea deal, which would have resulted in two years probation after pleading guilty to misdemeanor tax charges.

But the agreement fell apart after the judge expected to approve the deal instead raised further questions. 

In January, Biden instead pleaded not guilty to federal tax charges.

Hunter Biden raised some eyebrows in 2017 when it was revealed he began dating his brother Beau's widow Hallie (right) shortly after his death

Kestan and Hunter Biden spent many nights together at LA and New York hotels in 2018 

Kathleen Buhle and Hunter Biden in 2016 before the couple's divorce the following year

A court sketch of Hunter Biden alongside his lawyer Abbe Lowell in federal court on January 11, 2024. The president's son pleaded not guilty to federal tax charges filed after a plea deal imploded

Biden is charged with nine felony and misdemeanor tax offenses. 

Federal prosecutors accuse the younger Biden of a four-year scheme to skip out on paying $1.4 million in taxes he owed the IRS between 2016 and 2019 and instead spending the money on his extravagant lifestyle including drugs and alcohol. 

Republicans including Donald Trump criticized the original plea deal which fell apart as a 'sweetheart deal.' 

Hunter Biden's lawyers have slammed the deal's implosion, claiming Congressional interference and accusing special counsel of bowing to political pressure.

Under the initial plea deal, Hunter Biden would have also avoided prosecution on the gun charge if he stayed out of trouble. 

Hunter Biden takes a stroll with his current wife, Melissa, and their son while in 2021

Close friend of Hunter Biden, Kevin Morris, left, is said to be 'tapped out' of cash after financially supporting his legal battles over the last four and a half years to the tune of $6m. Hunter's lead defense attorney, Abbe Lowell, seen right, doesn't come cheap

Hunter's lead defense attorney, Abbe Lowell, seen right, charges between $855 and $1,500 an hour for his services

Ahead of the looming trials, Hunter Biden's 'sugar brother' Kevin Morris, 61, is reportedly tapped out of cash after financially supporting Biden's legal battles over the last four and a half years.

Morris decided to step in after believing Hunter had little support, loaning him more than $6.5 million.

But Morris has since confirmed he is no longer going to continue to lend money to the first son to fight his legal battles.

Hunter Biden's troubles are not a new headache for the president. He was attacked mercilessly during the 2020 campaign by Trump over his son's business dealings and drug addiction.

The president's son has acknowledged struggling with an addiction to crack cocaine during that period in 2018, but his lawyers have said he didn't break the law 

Then-candidate Biden faced attacks over his son Hunter during the 2020 campaign. During the debate he addressed his son's past drug addiction head on saying 'he's working on it, and I'm proud of him.'

During a standout moment the first presidential debate in 2020 Biden shot back about his son's drug problem 'he's fixed it, he's working on it, and I'm proud of him.'

But it is a new reality the president's son could face prison this year as the president seeks a second term in the White House.

While a president's children and other family members have posed a series of challenges for them throughout history, prison time for a sitting president's child during a campaign is unprecedented.

Meanwhile, Trump has also faced legal challenges this election season that have forced him to spend the better part of the last two months in a courtroom rather than on the campaign trail.

Donald Trump in the Manhattan criminal court for his hush money trial on May 14

New York prosecutors could rest their case in the hush money trial next week. And jury deliberations could begin as soon as next week as the ex-president is facing 34 counts of falsifying business records. 

Prosecutors accuse him of attempting to cover up the payment to a porn star. 

He also faces charges in Georgia, Florida and Washington, DC for election interference and mishandling classified documents after leaving office. 

Trial dates for those cases have not yet been set and could be put off indefinitely as Trump mounts his presidential bid.