AMNA NAWAZ: Ahead of the midterms, President Trump is on the campaign trail looking to rally his base in battleground races.

His controversial comments at those rallies have drawn attention.

To fact-check some of the president's claims, we're joined now by our White House correspondent, Liz Landers.

Liz, let's just start off with something the president talks about frequently at these rallies, which is immigration.

Here's what he had to say about Somali immigrants during a rally in Ohio earlier this week.

DONALD TRUMP, President of the United States: All they do is kill each other in the streets.

Then they come into the United States of America and they tell us how to run our country.

We're not going to stand for it.

They drive up taxes.

They drive up health care costs, insurance costs, childcare costs, and they cheat on everything.

It's a disaster.

And we're not going to stand for it.

AMNA NAWAZ: Setting aside the comments about violence there, what do we know about what the president had to say about immigration driving up costs?

LIZ LANDERS: Yes, the Congressional Budget Office has analyzed this and looked at the immigration surge here in the United States starting in 2024 and projecting for 10 years and says that the immigration surge will actually add $1.2 trillion to federal revenue.

And, by 2034, the annual increase in revenue will be up to $164 billion.

So this surge is projected to boost economic activity and, in turn, tax revenues.

And when it comes to what he was saying about insurance there, undocumented immigrants are not eligible for Medicaid coverage.

There are certain circumstances where lawfully present immigrants may have some kind of qualified status, but they have to wait five years before they are eligible for it.

And KFF has found that immigrants are not more likely than U.S.-born citizens to report using government assistance for food, housing, and health care, Amna.

AMNA NAWAZ: There's another comment the president made that got a lot of attention at a rally in Arizona.

He called for the death penalty for leakers.

Take a listen.

DONALD TRUMP: In my opinion, leakers should be shot.

DONALD TRUMP: They should be shot.

In the old days, we used to shoot leakers when they leak what time you're going to attack a country?

No, leakers should be dealt with very, very strongly.

They're real -- to me, they're the scum of the earth.

The leakers are the scum of the earth.

AMNA NAWAZ: Liz, do people who leak information ever face capital punishment?

LIZ LANDERS: Well, in this instance, it sounds like the president is talking about recent leaks around the U.S.

attacks on Iran.

So, most government leaks are prosecuted under the Espionage Act of 1917, which penalizes the unauthorized retention or dissemination of national defense information.

Those charges have a standard prison term sentence of either five to 10 years maximum in jail.

Most federal crimes that qualify for the death penalty involve murder or death themselves.

There is one exception with this.

That is treason.

But the last person to be tried with treason in the United States was Adam Gadahn in 2006 for providing aid to al-Qaida.

And the last person to be sentenced to death for treason was in 1948.

It was a Japanese American who'd been convicted of torturing Americans during World War II, but he was deported to Japan before that happened.

AMNA NAWAZ: So, at that same rally, the president also questioned the results of the 2022 Arizona governor's race.

Take a listen.

DONALD TRUMP: The damn machines were broken in Republican areas.

They were broken purposely, and you couldn't vote.

(CHEERING) DONALD TRUMP: What a rigged election that was.

And it's a shame.

It's a shame and that they can allow that happen.

AMNA NAWAZ: Liz, what do we know about that election and where this fits into the president's longstanding claims of election fraud?

LIZ LANDERS: He reiterates this and lies about this almost on a daily basis.

This line that the machines were broken purposefully in Republican areas is false.

I was on the ground in Maricopa County for that election in 2022.

And what happened was, there was an issue with the printer in some, not all, vote centers throughout Maricopa County.

The ballot ink was too light.

It could not be read by tabulators.

And what happened was, it created frustrations with the lines there.

People were having to wait to have their ballots processed, but it did not disenfranchise any voters in Maricopa County or prohibit them from casting a ballot.

There were some subsequent legal challenges that were brought by Kari Lake.

Those were thoroughly reviewed and dismissed across multiple levels of the judiciary there.

AMNA NAWAZ: So, speaking of election administration, we know the Trump administration continues to try to compel states to turn over voter information, try to restrict who can get a mail-in ballot.

The Department of Justice filed a lawsuit just yesterday against California's secretary of state and also Los Angeles' top elections official.

What are they alleging here?

LIZ LANDERS: We have been following how the federal government is trying to impact the midterm elections, even though states in the Constitution are the ones who are designated to set the time, place and manner of how their elections are conducted.

The Department of Justice sent this letter on Wednesday to both the secretary of state there, the top elections official in L.A.

County, and gave them 48 hours to review a list that they had put together of 20,000 people that the Department of Justice says they -- quote -- "believe" are noncitizens on voter rolls in that state.

What happened was, they provided them with a thumb drive that had a sticky note with a password on it.

And I talked to this election official, DEAN LOGAN, in L.A.

County, and he said: "We are not going to put that in our computers.

That is not a safe and secure thing for us to do right now."

The federal government was asking California to set aside those ballots of the 20,000 people that they believe may not be citizens, so, in other words, asking them to change some of their voting practices there.

Problem for the federal government is that they do not have a good track record right now on these lists that they're compiling and giving to states.

Department of Homeland Security sent Nevada a list of 148 people that they thought were noncitizens on voter rolls.

Turns out all of them were citizens.

AMNA NAWAZ: Before I let you go, the newly appointed White House press secretary, Katie Zacharia, officially out today after days on the job.

What do we know about her departure?

LIZ LANDERS: Her departure was a combination of two things.

It sounds like the performance that she had on Tuesday at the podium, she was visibly nervous, did not do well.

I heard from a lot of sources that they did not think that she was up to the job.

Second thing was the questions about her legal background.

She did graduate from law school, but she failed the bar exam.

The president did not seem to know that or understand that.

Today, he said to reporters as he was leaving the White House: "Katie, is this for you?"

He said he this is -- what he said to her, and she said she's a nice person.

But he said: "You don't have to do this if you don't want."

AMNA NAWAZ: That's our White House correspondent, Liz Landers.

Liz, thank you.

LIZ LANDERS: Of course.