President-elect Donald Trump's granddaughter Kai has posted a behind-the-scenes video from Elon Musk's SpaceX rocket launch in Texas.

Kai, the 17-year-old daughter of Donald Trump Jr., has been a major public supporter of her grandfather.

In the video she posted to X, Kai can be seen flying in a private jet with a friend to attend the launch.

After she arrives, Musk can be seen talking to her grandfather and Sen. Ted Cruz.

"It only comes back to land if everything is, like, super green," Musk explains to Trump and Sen. Cruz in the video. "And then we had some concerns about the tower, so it was commanded to land out in sea."

"Amazing. Can they use that again?" Trump asks. "Can they get it from the sea?"

"It's going to be … probably blow up," Musk replies. "It's probably going to blow up is my guess. But, that's fine. We actually have better versions that are in production in those factories over there."

Musk explained that he already had another rocket, which was "better" than the one launched that day.

"So, what makes it better?" Cruz inquires.

"The specific next one we have has a lot of small improvements," Musk explains. "There's a big version increase that'll be flying next year. That's got the version three of our engines — that'll look very different. It will be longer and have a lot more thrust and have the new generation engines."