Since Roe vs. Wade was overturned, a number of Republican-led states have passed laws that prohibit abortion after 6 weeks of pregnancy or when a fetal heartbeat can be detected (though many of these laws have been blocked in court). According to June polling from Harris Poll for the Harvard University Center for American Political Studies, Republicans favor similar laws in their states by a margin of 30 percentage points (65 percent support and 35 percent oppose).
-Analysis by FiveThirtyEight

DeSantis brushed off concerns that his signing a six-week abortion ban in Florida will hurt him on the national stage.

"I would say we sold the biggest election landslide victory in the history of the Republican party and the state of Florida in 2022," DeSantis countered. "That's what I did. We can win."

DeSantis argued "we're better than what the Democrats are selling" but ultimately demurred on whether he'd support a six-week ban at the national level.

"I will stand on the side of life," he responded.

DeSantis wouldn’t directly answer when the moderators asked him if he would sign a national abortion ban, and Pence pounced. He comes from the social conservative wing of the party, and supports a national ban. This isn’t the first time Pence has criticized DeSantis for not being conservative enough on abortion, either.
-Analysis by Nathaniel Rakich of FiveThirtyEight

Haley reiterated her calls for "compassion" when the country debates abortion, though she declined to state whether she would support a federal ban on the procedure.

Haley noted the uphill climb to a federal ban, referencing the 60-vote filibuster in the Senate, but said she would oppose late-term abortions and punishments for women who receive abortions.

"Can't we all agree that we should ban late term abortions? Can't we all agree that we should encourage adoptions? Can't we all agree that doctors and nurses who don't believe in abortion shouldn't have to perform them? Can't we all agree that contraception should be available? And can't we all agree that we are not going to put a woman in jail or give her the death penalty if she gets an abortion? Let's treat this like the like the respectful issue that it is," she said.

-ABC News' Tal Axelrod

In 2016, Trump was the ultimate outsider candidate — he didn’t receive a single endorsement from a sitting senator, representative or governor until after he had already won New Hampshire, South Carolina and Nevada. This year, though, he already has a ton of elite support. According to the FiveThirtyEight endorsement tracker, he has 343 endorsement points — nearly eight times as many as DeSantis, who is in second place.

The 2016 race notwithstanding, endorsements have historically been very predictive of who eventually wins a party’s nomination. The candidate with the most FiveThirtyEight endorsement points on the day before the Iowa caucuses has won 11 of the last 17 Republican and Democratic primary fights without an incumbent president. And when that candidate has a dominant endorsement lead, they win even more often: Endorsement leaders who had collected more than 15 percent of the estimated available endorsement points before Iowa won nine times out of 10. And Trump already has 17 percent of all available endorsement points with five months left until Iowa.

-Analysis by Nathaniel Rakich of FiveThirtyEight