Harris saw bullet-pocked walls and floors still covered in dried blood and broken glass left behind from the Feb. 14, 2018, attack at Marjory Stoneman Douglas High School that killed 14 students and three staff members and wounded 17.

Gun violence has again seeped into a youth sporting event in Central Indiana, the latest case unfolding last week near Beech Grove High School after a girls' sectional basketball game had taken place.

Citing an urgent need to act after Uvalde and shootings outside a high school and a church in Iowa, Gov. Kim Reynolds said the state would award up to $50,000 each to 1,500 schools to fix vulnerabilities. Like many other Republicans, she rebuffed calls for stricter gun control while embracing efforts to "harden" schools.