The Republican Primary Consensus for Sending the Military Into Mexico

When Sen. Tim Scott (R–S.C.), a comparatively affable chap in the context of contemporary GOP politics, announced his 2024 presidential bid on Monday, the speech was predictably full of the upbeat, anecdotal, ain't-America-grand stuff that Scott, like generations of Republicans before him, has made central to his political career.

Then things suddenly turned dark.

"When I am president, the drug cartels using Chinese labs and Mexican factories to kill Americans will cease to exist," Scott vowed. "I will freeze their assets, I will build the wall, and I will allow...