Abortion hasn't just been a losing issue at the ballot for Republicans: Since the Dobbs decision, more Americans are supporting more liberal views on abortion than they have in decades. More Americans want abortion to be legal in most cases, and more Americans are suspicious of restrictions. The share of Americans who want abortion to be legal in the first trimester is 60 percent, according to Gallup.
-Analysis by Monica Potts of FiveThirtyEight

Haley was the first participant to name Trump during the debate, referring to the amount that was added to the nation's debt under the former president, who also oversaw the sweeping response to the unprecedented COVID-19 pandemic and a major tax cut.

-ABC News’ Abby Cruz

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.

Before tonight’s debate kicks off, FiveThirtyEight, The Washington Post and Ipsos partnered to ask Republican voters about how they might vote in the upcoming Republican presidential primaries. Specifically, we asked 4,968 likely Republican voters which issues are most important to them when deciding which candidate to vote for in the primaries, using Ipsos’s KnowledgePanel.

We offered respondents a list of 16 issues and allowed them to select up to three. Of the topics that we asked about, voters were most concerned about “getting inflation or increasing costs under control” (53 percent of respondents selected this issue), something Republican voters have been concerned about since at least the 2022 midterms, according to a previous FiveThirtyEight/Ipsos poll. Other issues that were top of mind for voters were “controlling immigration” (36 percent), “someone fighting against liberalism and the woke agenda” (25 percent) and “ability to beat Joe Biden” (25 percent).

If tonight’s debate touches upon those top issues, voters might get some clarity on who they are considering voting for when primary season comes around.

-Analysis by Holly Fuong of FiveThirtyEight