AMNA NAWAZ: For a deeper dive and a fact-check on many of the claims the president made last night, I'm joined now by our White House correspondent, Laura Barron-Lopez.

Laura, so let's just start with some of the biggest claims of the night.

What stood out to you in terms of the areas that President Trump focused on?

LAURA BARRON-LOPEZ: So this is not an exhaustive list, but these are some of the key misleading, exaggerated, or false statements that the president made, starting with the fact that he said 21 million undocumented immigrants entered the United States under Biden.

It was actually under 11 million and many were rapidly expelled.

He said that $350 billion has been spent on supporting Ukraine.

It's actually just over $180 billion.

That's according to the Ukraine oversight inspector general.

And that includes money that's spent inside the U.S. on weapons manufacturing.

The president also said that fentanyl coming from Canada is killing thousands.

Actually, only 43 pounds of fentanyl was seized in 2024 -- 43 pounds of the fentanyl that was seized came from Canada, so about 0.2 percent of the total amount.

And then, lastly, the president said that millions are being spent on -- quote -- "making mice transgender."

That claim is false.

AMNA NAWAZ: That last one there, Laura, making mice transgender, what's the reality there?

LAURA BARRON-LOPEZ: So, again, the idea that scientists are making mice transgender is false.

The kinds of research experiments that President Trump and the White House were pointing to is basic scientific research.

These studies were not studying if gender-affirming care works.

That's a legal medical treatment that's endorsed by major U.S. medical associations.

These experiments were studying the effects of gender-affirming hormones on asthma and on whether gender-affirming hormones increase breast cancer risk.

So, if someone is getting gender-affirming care, does it make an HIV vaccine less effective on that person?

Many diseases and conditions are impacted by a person's hormones, Amna, and there is no ethical scenario where scientists will just be immediately experimenting on humans.

They always start with rats and mice.

So, ultimately, these experiments on mice that the president was singling out, they help scientists understand the biological effects on humans and on the endocrine system.

And they could also impact the wider U.S. population, not just transgender people.

Again, Amna, those scientific experiments that were being paid for funded by NIH are not fraud.

AMNA NAWAZ: So, leading up to this speech, we heard from President Trump and from Elon Musk claiming millions of dead people had been receiving Social Security payments.

We heard the president double down on that last night.

What should we understand there?

LAURA BARRON-LOPEZ: So the president spent a big chunk of his address repeating these false claims on Social Security.

DONALD TRUMP: We're also identifying shocking levels of incompetence and probable fraud in the Social Security program for our seniors and at our seniors, 1.3 million people from ages 150 to 159, and over 130,000 people, according to the Social Security databases, are aged over 160 years old.

LAURA BARRON-LOPEZ: Many of those claims have also been spread online by Elon Musk to his more than 200 million followers, but the reality is that 1 percent of Social Security Administration payments are improper, and they're made to living people.

And there are Americans in the system who were born in the 1920s.

They're still in the Social Security Administration system, but that doesn't mean that they are receiving payments, which is something that the president's own Social Security administrator recently said.

And also, Amna, the Social Security Administration automatically stops payments to people who are over the age of 115 years old.

AMNA NAWAZ: So, President Trump has also claimed that Elon Musk's team has found what he's called hundreds of billions of dollars of fraud.

He listed a number of those programs in his speech last night.

Are those canceled government contracts, are they all fraudulent?

LAURA BARRON-LOPEZ: So the White House and Elon Musk have provided no evidence that those contracts that they have canceled are fraudulent.

One example being the amount of money that FEMA sent to shelter migrants in New York City, that money was congressionally approved.

It was voted on even by some Republicans.

The president has labeled that fraud, and so has Elon Musk.

So what they are essentially doing is, they are calling on their wall of receipts that DOGE has, where they're showing the contracts that they say that they have canceled.

They're calling a lot of those fraud, even though they haven't provided the evidence.

And some of that wall of receipts has math errors.

It has duplicate contracts.

It has contracts cut that actually had no savings, and they admit it on that wall of receipts.

And so essentially what's happening, Amna, is that the president and his allies are calling many of these contracts fraud simply because they disagree with the programs that are being funded.

And it is a president's prerogative to say that they don't want certain money going to specific programs.

That doesn't make those programs fraud.

AMNA NAWAZ: White House correspondent Laura Barron-Lopez.

Laura, thank you.

LAURA BARRON-LOPEZ: Thank you.