Transcript for Mother and son reunited at the border after being separated for years
Now to the first family reunited at the border under the Biden administration after being separated by president trump's ro tolerance immigration policy, more than three years ago. Chief white house correspondent Cecilia Vega has more. Reporter: This is the moment Sandra Ortiz sees her son for the first time in more than three years and this is their very first hug. It's all happening at the very same California port of entry where they and thousands of other families just like theirs were forcibly separated unthe trump administration's policy aimed at deterring illegal immigration. Sandra who fled Mexico in the face of threats from cartels was deported without her son. Brian, 15 at the time was sent to a shelter then sent to live with older siblings in California. Now they're together again carrying signs saying the wait was worth it. I love you. It feels like a dream. I was like in the car and now this is really happening. Reporter: They are the first family to be reunited under the Biden administration, this video taken by advocates who helped organize the reunion. In some cases it has taken years to loikt the parents in Mexico and Central America. The Biden white house says the trump administration left them with little or no information about the families. There's more than 400 whose parents need to be located. Bryan graduated a year early and speaks fluent English and he had just a few minutes to say good-bye saying they would never see each other again. I was talking to her on the phone but still seeing her in person, being able to give her a hug. Does it feel like a dream? Yes. End of a nightmare? Yes. Reporter: So there are four families being reunited this weekend, them including Bryan's are being granted a temporary stay. They should be given a permanent one. He wanted to enroll in college but he couldn't afford it and couldn't get scholarships so working with these immigrant groups that helped reunite hills family, and he wants to help other families just like his. Thank you. That high speed heist caught
This transcript has been automatically generated and may not be 100% accurate.