Zohran Mamdani, the Democratic nominee, has vowed to strictly enforce the measure, Local Law 97, which calls for potentially expensive upgrades to buildings to curb greenhouse emissions.

It’s certainly an unusual New York City mayor’s race. If you recently started paying attention, here’s the extremely abridged version: Our incumbent Mayor Eric Adams should have had an easy path to reelection after winning the open seat as a Democrat in 2021.