Hallie Biden's toxic relationship with Hunter and father-in-law Joe trends now

Hallie Biden, the president's daughter-in-law, was on Hunter's company payroll, indirectly received thousands of dollars from his suspect Chinese ventures, and had her rehab visits paid by Joe Biden, DailyMail.com can reveal.

The 49-year-old widow of Joe's late older son Beau is the latest target of the Republican-controlled Congressional investigation into the First Family, after subpoenaed bank records revealed Hunter's business partner and family friend wired her $35,000 around the time he received $3million from their Chinese business partners.

Now DailyMail.com can exclusively reveal material from Hunter's abandoned laptop laying bare Hallie's involvement with Hunter's firm, Rosemont Seneca, her own struggles with drug addiction, and her toxic relationship with the president's only surviving son.

Hallie, who grew up in Delaware and whose mother was friends with Joe, joined the Biden clan in 2002 when she married Beau. He became state attorney general in 2007.

DailyMail.com can reveal Hallie Biden was on Hunter's company payroll, indirectly received thousands of dollars from his suspect Chinese ventures and had her rehab visits paid by Joe Biden

After Beau died in 2015 from brain cancer at age 46, Hallie began an affair with her brother-in-law Hunter, 53. The relationship erupted in scandal when they were outed in 2017

In July 2018 Hunter sent a recording to his father of himself talking on the phone arguing with Hallie. Joe responded: 'Got your text. Can't say I'm surprised. Going to bed I'll call you tomorrow morning. Love you. Be strong. Love Dad'

After Beau died in 2015 from brain cancer at age 46, Hallie began an affair with her brother-in-law Hunter, 53. The relationship erupted in scandal when they were outed in 2017.

Hunter wrote in messages that Hallie had been to rehab four times, costing over $100,000 – some of it allegedly paid for by Joe Biden

Though Hunter's prolific drug addiction and downward spiral into binges with prostitutes has been well-publicized, messages and videos from his laptop reveal that Hallie was also in the throes of addiction during their controversial relationship.

In a January 2019 phone call Hunter recorded with Hallie she begged him to come and take drugs with her, telling him: 'I'm going to use regardless, but I would rather use with you.'

Hunter videoed himself having another phone call with Hallie in which she asked him to get drugs for her.

'I want to help you from f***ing up, Hal. You're gonna lose your children,' Hunter said. 'Just help me get it, please,' she replied. She added that she planned to ask a friend for cocaine.

'Hallie, there is no way in hell you think that Lisa doesn't know that you've been in and out of rehab, all the struggles you're going through, and is going to get you cocaine,' he said.

'I don't know. I still think she would,' Hallie replied.

'You don't think she would call your sister who would call your mom who would call my dad? Absolutely 100% she would,' Hunter said.

Hunter wrote in messages that Hallie had been to rehab four times, costing over $100,000 – some of it allegedly paid for by Joe Biden.

In December 2018 Hunter wrote a ranting text to Hallie referring to '$57,000 I paid for you at Passages ($5,700 per day) or the $45,000 Dad paid at Caron (4500 per day you stayed).' Both Passages and Caron are rehab centers.

Beau Biden died of brain cancer in 2015 and in the wake of his death, Hallie began dating his brother Hunter. Joe, Jill, Beau and Hallie pictured in 2012

Hunter discussed which rehab center he will be attending, and revealed his father spent $45,000 on a ten-day rehab stay for Hallie. 'It's 3 Months because you have told me and anyone who would listen that I need long term It's closer. D more accessible to my children and dad then Caron is by far,' he wrote

Venomous texts sent by Ashley Biden, Hunter's sister, blame Hallie for Hunter's drug spiral and accuse her of picking up crack from a dealer in Delaware, even suggesting that she was being monitored by law enforcement

'Don't think anyone wants that on front page of news journal. ''Attorney Generals widow buying crack and meth'' – something has to give,' Ashley wrote. 'Enough is enough. My brother wouldn't stand for this s***'

Their addictions created rifts in the family, with Hunter's texts full of accusations and drama about their arguments that enveloped the whole clan.

'I don't have proof of this but I would be careful as s*** because what was implied to me was whomever is giving them s*** is being monitored by law enforcement.'

Texts also show Joe was aware of Hallie's addiction.

In July 2018 Hunter sent a recording to his father of himself talking on the phone to Hallie, arguing over how she planned to buy and cook crack cocaine.

Joe responded: 'Got your text. Can't say I'm surprised. Going to bed I'll call you tomorrow morning. Love you. Be strong. Love Dad.'

The financial relationship between Hunter and his sister-in-law-cum-lover also grew from around 2016.

Amid Hunter's split with his first wife Kathleen Buhle, she emailed him furiously about expensive gifts he was buying Hallie

Kathleen sent the emails in July 2016, after reportedly discovering romantic texts between her husband and Hallie. 'I'm leaving you because you are having an affair and you have been emotionally abusive,' Kathleen wrote on July 28, 2016

In an email with the subject line 'Final words', Kathleen writes 'You cheated on me. Not only did you cheat on me, Viagra and Cialis, you actually bought her expensive gifts'

Photos on Hunter's laptop include Hallie posing in a fur coat he appears to have bought her

Amid Hunter's split with his first wife Kathleen Buhle that year, she emailed