Kai Trump has opened up about her mom, Vanessa Trump's cancer treatment, admitting that the radiation has taken a 'toll on her body.'

Vanessa, 48, revealed that she was battling breast cancer back in May, and confirmed last month that she had undergone surgery and was preparing for the second stage of her medical treatment.

Now, her daughter Kai, 19, has shared some new insight into just how difficult the process has been.

During an appearance on Fox and Friends on Thursday morning, the budding golfer said that while her mom is 'doing better,' the radiation has 'taken a toll on her body.'

'How is your mom doing, I know she was diagnosed with breast cancer,' the host asked the teenager.

'She's doing better, obviously radiation takes a toll on your body but she's doing better, feeling better,' Kai said.

She went on to brand her mom a 'fighter' and said she was feeling hopeful, adding: 'She's been a little tired but she's a fighter.

'If anyone can go through it, she can definitely... she's a fighter, she'll be fine.'

On Wednesday evening at the ESPY Awards in New York, Kai reiterated that her mom was doing well amidst her diagnosis.

'My mom's doing good,' she told Page Six on the red carpet. 'She's doing better.'

Throughout her health battle, sources have said that Vanessa has been heavily supported by her boyfriend, golf legend Tiger Woods, whom she started dating in 2025. 

An insider revealed to People recently that the 15-time major champion had been 'staying focused' on supporting Vanessa throughout her recovery. 

The 50-year-old 'has been amazing during Vanessa's recent diagnosis,' the source said, adding that Woods has turned his full attention toward her battle after his own recent medical and legal issues. 

'Vanessa's needs and issues have taken Tiger's thoughts outside of his own legal, medical and personal struggles, which has been good for him,' the insider said.

'He has given her a lot of love - even while away working on himself. It shows he has character.' 

The source also told People the couple 'are optimistic about her treatments.' 

'Like anyone diagnosed with this disease, she is anxious but also strong and eager to move beyond,' they added. 

'She is loved and receiving a great deal of support ... With all of the advanced treatments and excellent healthcare facilities around her, Vanessa will continue to receive top-notch care.' 

At the event, Kai also made a rare political statement while chatting with Sportico.

It came after the reporter asked Kai about her recent appearance at the UFC 250 event at the White House for President Donald Trump's 80th birthday, and what she thought about the integration of politics and sports. 

'Honestly, I kind of stay out of politics completely, it's not my thing, but I think the UFC event was great and it was really cool being there,' she said. 

'Especially having veterans in the stadium as well, that's where you can kind of combine the 250 point of view on it.' 

Instead, the University of Miami freshman emphasized that her focus is on inspiring the next generation of female golfers. 

'I just like showing my life and showing how you can still be an athlete, and you can still do a ton of cool things, enjoy a ton of other things,' she added. 'I kind of like just showing people that everything's possible.'

'I love showing the new generation my progress through college, eventually, and how I got to where I am today.'