Heat Wave Blankets the Country as Candidates Prepare Differently for First Debate

The extreme heat wave that has blanketed the country this weekend is expected to continue into the coming week. CBS News meteorologist Jeff Berardelli reports. Then, Democratic Governor Michelle Lujan Grisham of New Mexico joins CBS News political correspondent Elena Volochovskaya to discuss the wildfires tearing through her state and her take on some of the Biden administration's latest immigration actions. Then, former national security adviser Robert O'Brien discusses the upcoming presidential debate on foreign policy and his opinion piece in "Foreign Affairs" magazine on what a second Trump term would look like.

Republican presidential candidate former President Donald Trump talks about his preparation for the first presidential debate with Democratic candidate and President Biden, and appears to hint at a possible vice presidential pick. Mr. Trump was in Philadelphia on Saturday for a fundraiser and to preview his remarks for next week's Republican National Convention. In other news: 100 million Americans are living under a heat advisory today, with temperatures feeling like the mid-90s to low 100s across the Northeast; Wildfires have torn through parts of New Mexico, with some communities completely evacuated; President Biden plans to spend the week ahead of the debate prepulating alone at Camp David, the presidential retreat in Maryland's Catoctin Mountains; and former national security adviser Robert O&Brien discusses the upcoming presidential debate on foreign policy and his opinion piece in "Foreign Affairs" magazine on what a second Trump term would look like.

This heat wave is expected to continue into the coming week, with temperatures feeling like the mid-90s to low 100s across the Northeast. And out west, there are some extremely dangerous fire conditions, as Mark Strassmann reports.

And I'm Margaret Brennan in Washington, where we begin with the latest on the extreme weather sweeping the country.

MARGARET BRENNAN: More than 100 million Americans are living under a heat advisory today as a dangerous heat dome blankets the region. Temperatures in the Northeast will feel like the mid-90s to as low as 100 degrees throughout the region. In a report from Atlanta, Mark Strassmann shows us what that will look like.

MARK STRASSMANN (voice-over): While Sunday's heat will feel hellish in the Northeast, it will actually be record setting in parts of the region. Washington, D.C., for example, will feel like 104 degrees today. And NOAA says there's a 100 percent chance that 2024 will be among the top five warmest years on record and a 50/50 chance it will be the hottest ever. Here's a look at how things are shaping up for this week. And this is the warning from NOAA. You know, it's barely into summer, and this is what we're looking at for the rest of the year. MARGARET BRENNAN: So, Robert, you were the national security adviser through the end of President Trump's term. And in an essay in "Foreign Affairs" magazine this month, you lay out what you think a second Trump term would look like. So I want to get into that. But first, Donald Trump himself was out on the campaign trail in Philadelphia yesterday. And he&positron;s got some preparation of his own to do ahead of the first debate on Thursday. Here he is teasing reporters about his running mate pick.

FORMER PRESIDENT DONALD TRUMP: When you say prep, I think this is prepping. You know, they're putting pressure on me. I'm not taking any questions. But I will tell you, we've done it. It's not the worst thing in the world. It's not the best thing in the world. But we have very good people working on it. But we did it. And I want to do it again. I have to say, it wasn't bad. It wasn't terrible. But I'm not taking any questions. I don't have to do this. I don't have to do anything. I'm here because I want to be here. And we're doing it. We have a very powerful, very strong team. And I'm happy to say that we're doing very well. We had an incredible day yesterday in Pennsylvania, and we had an incredible day in Georgia the day before. And it's going to get

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