Likely Republican voters are pretty split on "sending U.S. military forces to Mexico to fight drug cartels," according to our pre-debate 538/Washington Post/Ipsos poll. 44 percent support the proposed policy, compared with 46 percent who oppose.

—Analysis by Holly Fuong of 538

Some early moments in this debate have involved significant cross-talk and interruptions. Burgum's main two comments so far both came via him jumping in to speak without having been asked a question, which is something a low-polling candidate on the periphery of the stage (and race) might as well do with little to lose. Unlike in the first debate, there hasn't been as much of a push by the moderators to give a short rebuttal opportunity to candidates who were mentioned by another candidate, although multiple candidates have asked for that already.

—Analysis by Geoffrey Skelley of 538

The Trump administration built 52 miles of new primary border barriers — the first impediment people encounter if they’re trying to cross the southern border with Mexico, that can block access either for people on foot or for vehicles — where there were none before.

The administration built 458 total miles of primary and secondary border barriers, U.S. Customs and Border Protection data shows. The majority were replacements of smaller, dilapidated barriers.

The U.S.-Mexico border stretches for 2,000 miles across four states and a variety of terrain.
-Analysis by Aaron Sharockman, PolitiFact

Christie was just asked about his position on a pathway to citizenship for undocumented immigrants. In a July poll by The New York Times/Siena College, 39 percent of likely Republican voters say that they supported a “comprehensive immigration reform bill that provides a pathway to citizenship for all undocumented immigrants” in the United States, while 57 percent opposed such a bill. Support was weakest among Trump supporters (29 percent) compared with DeSantis supporters (48 percent) and voters who say they will vote for another candidate (50 percent).
—Analysis by 538

PolitiFact has a feature we call the Flip-O-Meter. It measures — you guessed it — flip flops.

Ramaswamy entered the flip zone when he criticized TikTok and then created an account on the platform.

"I am very open to banning TikTok outright," he wrote on X in February. "In the meantime, we sit on our hands and do nothing as kids get addicted to it like it’s digital fentanyl."

Later, on Sept. 13, Ramaswamy announced that he was joining TikTok. "Yes, kids under age 16 shouldn’t be using it, but the fact is that many young voters are & we’re not going to change this country without winning," he wrote on X. "We can’t just talk about the importance of the GOP ‘reaching young voters’ while hiding in our own echo chambers."

Ramaswamy is not the first candidate to criticize a social media platform while simultaneously using it. Massachusetts Sen. Elizabeth Warren advertised on Facebook while also saying that big tech had too much power.
-Analysis by Aaron Sharockman, PolitiFact