Kamala Harris and Donald Trump are veering sharply in how they gear up for Tuesday’s presidential debate, setting up a showdown that reflects not just two separate visions for the country but two politicians who approach big moments very differently.

Harris spent the weekend cloistered in a historic hotel in downtown Pittsburgh where she focused on honing crisp two-minute answers, per the debate’s rules.

Meanwhile, Trump has publicly dismissed the value of studying for the debate. The former president is choosing instead to fill his days with campaign-related events.

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Here’s the latest:

In new Harris ad, former Trump officials warn of dangers if he gets a second term

A new Harris campaign ad airing running on Fox News on the day of the presidential debate features former Trump officials warning of what they say are the dangers of a second Donald Trump presidency.

The ad is running in Philadelphia and West Palm Beach, Florida — where Trump lives — on Tuesday.

It features clips from former Vice President Mike Pence saying he would not be endorsing Trump. Former Secretary of Defense Mark Esper, National Security Advisor John Bolton, and Chairman of the Joint Chiefs of Staff General Mark Milley all warn against the Republican.

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The presidential debate begins at 9 p.m. ET on Tuesday on ABC.

Look out for wild card Trump

If you ask Trump’s previous debate opponents what they’re watching for on Tuesday night — and we did — many say the same thing: Look out for the thing he says or does that Harris can’t possibly prepare for.

Trump is the ultimate wild card who’s found tremendous political success by ignoring the traditional rules of politics. He will say or do whatever he thinks is best in the moment. And Harris, who has dedicated several days to debate prep, can’t make a plan for everything.

At this point, it’s hard to imagine Trump surprising anyone with new material. He has praised dictators, talked about genitalia size, suggested suspending the U.S. Constitution and said that Harris only recently “turned Black.”

Trump’s own team doesn’t know what he’ll do or say on any given day. That’s incredibly risky for Trump. But it also puts enormous pressure on Harris.

Abortion vs Immigration

Republicans hope Trump makes immigration a defining issue of the debate.

The GOP has effectively condemned the Biden administration’s handling of illegal immigration at the U.S.-Mexico border for much of the last four years.

Harris will be eager to remind voters that Trump helped kill a bipartisan immigration bill that would have done much to fix the problem. But overall, Harris is likely to be on the defensive when the issue comes up.

Democrats, meanwhile, want to focus on abortion.

Trump, of course, appointed three Supreme Court justices who later overturned the landmark Roe v. Wade decision that protected a woman’s right to choose abortion. Trump has repeatedly said he was proud that Roe was defeated. But aware that such a view isn’t popular among many women, he has tried to moderate his stance on the divisive issue.

Harris won’t make that easy. Stating the obvious, as a woman, she is positioned to be a much more effective messenger on the issue than Biden was. And Trump can’t afford to lose many more female voters.

Body language matters

There will, of course, be an obvious gender dynamic on stage Tuesday night.

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The candidates — who have never met in person before — will be expected to stay behind their podiums on Tuesday night. But Republicans are hopeful Trump will avoid any other provocations like pointing, yelling or otherwise approaching Harris in a way that might be off-putting to suburban women or other swing voters.

Harris, too, will face unique challenges related to her race and gender as voters consider whether to make her the nation’s first female president. Some voters still say they’re not comfortable with the idea. If she comes across as angry, she risks playing into racist tropes about Black women.

While the gender dynamic looms, do not underestimate the significance of their age difference, either.

Harris is almost two decades younger than the 78-year-old Trump. Age was viewed as a political advantage for Trump when he was facing the 81-year-old Biden, but the situation is now reversed against the 59-year-old Harris. If he wins, Trump would be the oldest U.S. president ever elected.