KAI Madison Trump, the precocious teen who stole the show at the 2024 Republican National Convention, has turned 18.

She was radiating with pride when Donald Trump took the oath of office as President of the United States for a second term on January 20, 2025. Here’s all the information you need about her.

Who is Kai Madison and how old is she?

Kai Madison Trump was born in New York City on May 12, 2007.

She is the 18-year-old granddaughter of Donald Trump.

Kai is one of the president’s ten grandchildren.

Like her grandfather, the young adult has shown her love for golfing, which began to manifest in 2018.

Since her first post on Instagram in June 2018, she has posted numerous photos and videos of her practicing her swing on the driving range.

Kai has also posted several photos of her and her grandfather at various golf competitions.

The enthusiastic golfer also runs a YouTube channel focused on her love for the sport, and as of May 12, 2025 — coinciding with her 18th birthday — the channel has attracted a remarkable 1.4 million subscribers.

The social media sensation also boasts a whopping 1.7million followers on Instagram.

Earlier in 2024, Kai posted that she had won the ladies club championship at Trump’s golf course in Palm Beach, Florida.

“Very proud of my game and where it’s heading but there is always room for improvement,” she wrote in the post.

Who are Kai Madison’s parents?

Kai is the eldest daughter of Donald Trump Jr and his ex-wife Vanessa.

She is the sibling to Donald John III, Tristan Milos, Spencer Frederick, and Chloe Sophia.

Just like her father, Kai has accompanied her grandfather on several campaign stops.

In June 2024, the teenager accompanied the her father and brother to a Turning Point Action event in Detroit, Michigan.

Kai posted several photos of the event — including ones with her grandfather — on Instagram.

I’m speaking today to share the side of my grandpa that people don’t often see

Kai Madison Trump

What did Kai Madison say during her RNC speech?

Kai took the stage at the RNC in Milwaukee, Wisconsin to talk about her grandfather on Wednesday, July 17, 2024.

The teenager sent massive shockwaves across the RNC when she gave — according to her father — her first-ever speech.

Trump revealed that Kai was invited to speak at the convention just days before it took place, following the attempted assassination of her grandfather on July 13.

Kai said: “I’m speaking today to share the side of my grandpa that people don’t often see.

“To me, he’s just a normal grandpa. He gives us candy and soda when our parents are not looking. He always wants to know how we’re doing in school.

“When I made the high honor roll, he presented it out to his friends how proud he was of me.

“He calls me during the middle of the school day to ask how my golf game is going and tells me all about his.

“But then I have to remind him that I’m in school and I will have to call him back later.

She added: “A lot of people have put my grandpa through hell and he’s still standing. Grandpa, you are such an inspiration and I love you.

“The media makes my grandpa seem like a different person, but I know him for who he is.”

According to Kai, her grandfather is “very caring and loving” and “truly wants the best for this country and he will fight every single day to make America great again.”

Kai had teased her speech on social media saying “I am honored to be speaking at the RNC at 9 pm (CDT).”