The first consequential election since Trump won last fall is being held right in our own backyard. It is the special U.S.

Democrats are betting on a backlash to President Donald Trump’s megabill in their bid to topple three Republican incumbents in Arizona: Reps. David Schweikert, Eli Crane and Juan Ciscomani.

On one level, David Hogg is performing a service the party badly needs: He’s one of relatively few people acknowledging that ...