Haley draws fire in 4th GOP debate, Christie warns absent Trump is biggest issue

Trump is skipping the chance to debate for the fourth time.

Instead of joining his challengers in Tuscaloosa, the former president will participate in a fundraiser in Hallandale Beach, Florida, for his campaign and his Save America PAC.

Trump offered some counterprogramming on Tuesday night with a town hall hosted by Fox News' Sean Hannity, during which he raised alarms by referring to himself as a "dictator" if elected, but only on "day one," saying his priorities would be closing the border and drilling.

-ABC News' Alexandra Hutzler

Can anyone take down Haley? According to 538’s polling with The Washington Post and Ipsos, Republican primary voters have responded favorably to each of Haley’s first three debate performances, and it’s probably not a coincidence that she’s been rising in the polls at the same time. But that could put a target on her back on Wednesday -- and it’s possible that her momentum will stall if she’s perceived to have a bad performance.

Will anyone go after Trump? So far, the debates have mostly consisted of the candidates on stage attacking each other. But that’s an odd strategy considering that their biggest obstacle to the nomination is Trump. In fact, he’s above 50% in 538’s national polling average -- meaning that even if another candidate consolidates all of the non-Trump vote, Trump would still be ahead. That means that someone is going to have to peel support away from Trump in order to win the nomination -- and one way to do that is to attack him in the debates.

Who will perform best on the economy and immigration? According to the latest 538/Washington Post/Ipsos poll, 52% of likely Republican voters said getting inflation or costs under control was one of the top three issues in determining their primary vote; 41% said controlling immigration was one of their top three issues. These will probably be the most important segments to watch at the debate then: If a candidate really aces a question on inflation or immigration, that could go a long way.

Will anyone watch? The ratings have been falling with every debate: While the August faceoff garnered 12.8 million viewers, the September one got 9.5 million and the November one got only 7.5 million. And only 26% of the respondents to our 538/Washington Post/Ipsos poll said they were very likely or absolutely certain to watch the fourth debate. Obviously, the fewer people who watch the debate, the less anything that happens on stage will matter.

-Analysis by Nathaniel Rakich of 538

In a bit of counterprogramming, President Joe Biden's campaign has released a set of questions it suggests the moderators ask of his potential opponents on Wednesday. The first: “Do you support Donald Trump’s plans to be a dictator on day 1?"

The campaign’s press release is a response to former President Trump’s comment on Tuesday that, “except for Day One,” he wouldn’t be a “dictator” if he returned to the presidency. “No, no, no. Other than day one. We’re closing the border, and we’re drilling, drilling, drilling. After that, I’m not a dictator,” the Republican front-runner told Fox News’ Sean Hannity.

The campaign, seeking to make democracy a central issue in next year's race, also suggested DeSantis, Haley, Ramaswamy and Christie speak to another democratic norm: “Will you accept the results of the 2024 election unequivocally?"

-ABC News' Chris Boccia

Will a smaller stage make a difference? What will the big policy topics be? Do DeSantis and Haley target Trump ... or each other?

Those are three of five notable things to watch in the fourth debate, on Wednesday night.

Read more about them here.

-ABC News' Tal Axelrod