Ramaswamy said the answer to the economy was to put people back to work, but the labor market is unusually strong, with low unemployment and cooling but steady job growth.
— Analysis by Monica Potts of 538

According to The New York Times, DeSantis has spoken the fourth-most of the seven candidates, behind Ramaswamy, Scott, and Christie. That's not the dominant performance that some of his supporters had hoped for, and it doesn't signal to viewers that he's the clear alternative to the absent Trump
-Jacob Rubashkin, 538 contributor

Mentions of Ronald Reagan, president of the U.S. from 1981 to 1989, so far tonight: 20.
Mentions of Donald Trump, president of the U.S. from 2017 to 2021 and current candidate for president: 12.

—Analysis by Nathaniel Rakich of 538

Nathaniel, I'd imagine Vivek's actual words spoken puts him even further ahead of the other contenders on stage. He even acknowledged he was "in a hurry" earlier in the debate, perhaps trying to inject a little humility and self-awareness into his image, especially after his unfavorability rating shot up after the first debate.
-Jacob Rubashkin, 538 contributor

Outside of the Trump-critical wing of the Republican primary — featuring Christie and Hutchinson, with major appearances by Pence — most of the presidential field has tip-toed around Trump, careful not to attract his ire. But in the last couple weeks, some candidates have started taking on Trump more directly, jeopardizing their prospects as his running mate.

Trump was already unlikely to name a challenger as his VP pick. Of the 19 unique Democratic and Republican presidential nominees since 1972, only four selected a running mate who had run against them in the same year’s primary. And Trump is even more prickly about loyalty than his recent predecessors.

Last week, we analyzed the tweets of the six highest-polling Republican candidates (other than Trump) in 538’s national polling average. Until recently, DeSantis had hardly acknowledged the former president, mentioning Trump just once since Jan. 6, 2021. But that changed last week, when DeSantis published three critical tweets about Trump. Scott, meanwhile, has largely kept his social media tone neutral toward Trump, but we did see a rare direct criticism on the stump last week, when he said Trump’s suggestion that he’d seek a compromise on federal abortion legislation was the wrong approach. Haley’s tone toward Trump shifted earlier this summer, from cautious to directly critical.

Tonight could tell us whether these recent instances of criticism are the beginnings of a new trend in which the GOP field actually tries to topple the front-runner.

—Analysis by Leah Askarinam of 538