Using military force in Mexico has become one of DeSantis's signature planks. In the past few months he's talked about sending special forces to confront the cartels, and didn't rule out firing missiles into Mexico either. It's a heavy-handed proposal that just a few years ago probably would have been major news but these days is pretty par for the course for more and more GOP officeholders.
-Jacob Rubashkin, 538 contributor

A plurality (31 percent) of Republican voters in a NewsNation poll from July said that drugs and substance abuse was the overall root cause of crime in their community. Twenty-three percent said the breakdown of the family unit was to blame, followed by 17 percent who listed underfunding of law enforcement. Systemic racism was the least mentioned issue, with just 3 percent of Republicans saying that it was the overall root cause of their community’s crime.
—Analysis by 538

Christie gets the first question out of the break on how to handle crime, and he made the case that he's the only person on stage whose done it as a former prosecutor. But he turned the question into an attack on Trump, calling out Trump for skipping out on the debate, saying that soon he'll be called "Donald Duck" for avoiding it. The thing is, Christie has essentially a 0 percent chance of winning the GOP nomination, so it's not especially interesting to hear him go after Trump. Earlier in the debate, DeSantis did echo an attack Christie made by hitting Trump for not being on stage to defend the former president's record on spending. More of those kind of dings from anyone besides Christie would be a development in this debate.

DeSantis stands by his decision to suspend two elected prosecutors in Florida, and says he'll bring civil rights cases (?) against local prosecutors as president.

-Jacob Rubashkin, 538 contributor

Hours before the seven Republicans who qualified for the second RNC debate would have taken the stage at the Reagan Library in Simi Valley, California, a few hopefuls shared their pre-game time rituals.

Pence got a workout in, did some light preparation work, and spent time with his wife, former Second Lady Karen Pence, daughter Charlotte and granddaughter Etta, according to a campaign adviser.

Scott spent the day with family. He took time for prayer, some devotionals, and worked out at the gym. The tune on repeat in his headphones this week has been "Way Maker" by Leeland, according to a source familiar with the campaign.

Ramaswamy had breakfast, worked out and played with his two sons Karthik and Arjun until he worked out again later, according to spokesperson and senior advisor Tricia McLaughlin. The tech entrepreneur also toured the Reagan Library, where he told reporters that he was “feeling good” ahead of the debate.

Haley's team shared the former ambassador’s playlist that she listened to before the debate. They include: