That's a rehearsed line from DeSantis on oil drilling locations if I ever heard one.
-Jacob Rubashkin, 538

The issue of supplying aid to Ukraine as the country remains invaded by Russia has been a major source of contention among the Republican party, even holding up budget negotiations as Congress barrels toward a government shutdown.

A few answers from the GOP candidates at the debate displayed the variety of opinion among the primary field. Christie, who shares the belief of establishment Republicans, spoke about his unrelenting support for Ukraine aid.

“That was the darkest moment in world history when the Soviet Union fell. Listen, everybody, [Putin] wants to put the old band back together, and only America can stop it,” said Christie, who noted that American leadership on the conflict could display strength in other areas of foreign policy.

“Ukraine – that's a green light to China,” Christie said. “They're all connected, Stuart. They're all connected. The Chinese are paying for the Russian war in Ukraine, the Iranians who supply more sophisticated weapons, and so are the North Koreans now as well, with the encouragement of the Chinese.

Christie bashed some of his primary challengers for their opposing views: “the naivete on the stage from some of these folks is extraordinary.”

DeSantis, like the right flank of the party, said he would not embrace continually funding the “territorial dispute.”

“It's in our interest to end this war and that's what I will do as president. We are not going to have a blank check. We will not have US troops and we're going to make the Europeans do what they need to do… Meanwhile, our own country is being invaded.”

–ABC News’ Isabella Murray

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

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