How to Watch the Republican Debate Taking Place in Iowa

Nikki Haley and Ron DeSantis will meet on Wednesday night in Des Moines for the last Republican presidential debate before the Iowa caucuses on Monday.

CNN will host the debate starting at 9 p.m. Eastern time.

Where can I watch?

CNN is broadcasting the debate on cable and will stream it free on CNN.com. Subscribers to the streaming service Max can watch via CNN Max.

Which candidates will be there?

Only three candidates — Mr. DeSantis, Ms. Haley and Donald J. Trump — met CNN’s qualification requirements. To make it onto the debate stage, candidates had to have at least 10 percent support in a minimum of three distinct polls of national Republican primary voters or Iowa Republican caucusgoers.

Mr. Trump, the front-runner, has not attended any of the four previous Republican primary debates. He won’t attend this one either, leaving Mr. DeSantis, Florida’s governor, and Ms. Haley, the former governor of South Carolina, to face off one on one. Instead, Mr. Trump will join the Fox News anchors Bret Baier and Martha MacCallum for a live town hall at the same time as the debate.

In a departure from the four previous debates, the Republican National Committee is not a sponsor of the one on Wednesday. In December, the party decided it would stop participating in future debates, giving the hosting TV networks freedom to set their own qualification rules.

Who are the moderators?

Dana Bash and Jack Tapper, co-hosts of CNN’s Sunday show “State of the Union,” will moderate the debate.

Is this the last primary debate?

No. ABC News and WMUR, a Hearst television station in New Hampshire, will host a debate in that state on Jan. 18. And CNN plans to host another debate, also in New Hampshire, on Jan. 21.