Many observers had written off the race between Gov. Greg Abbott (R) and Democratic challenger Beto O’Rourke, pointing to the incumbent governor’s generally high favorability and the Lone Star State’s deep-red hue.

But the recent shooting at an elementary school in Uvalde sparked a renewed debate over gun control and raised pressure on state officials, including Abbott. And polls conducted in the shooting’s aftermath suggest a surprisingly close race.

Still, while Democrats say these developments make them feel hopeful, they’re also reminiscent of recent campaign cycles in which Republicans ultimately came out triumphant despite tight polling leading up to Election Day.

“I’m feeling cautiously optimistic,” said Texas Democratic state Rep. James Talarico. “This doesn’t mean that we don’t have a lot of work to do. Even if Beto wins, it doesn’t mean we stop working.”

“This is a long-term effort that outlives any individual,” he added.