A proposal to designate the tortilla as New Mexico’s official state bread had unanimous support from lawmakers. On Friday, though, it ended up falling flat. It wasn’t because Gov. Michelle Lujan Grisham isn’t a fan of the round wraps that have long been a staple of Mexican, Central American and Southwestern U.S. cooking. It was because she believes lawmakers missed opportunities to debate bills that deal with weightier matters as the state faces extraordinary challenges. “Of course, I enjoy celebrating our unique culture,” she wrote in her veto message, ticking off numerous official state symbols and songs that New Mexico...