AUSTIN, Texas — At Austin Community College, civics is an unwritten part of the curriculum — so much so that for years the school has tapped its own funds to set up temporary early-voting sites on nine of its 11 campuses .

No more, however. This spring, the Texas Legislature outlawed polling places that did not stay open for the entire 12-day early-voting period. When the state’s elections take place in three weeks, those nine sites — which logged many of the nearly 14,000 ballots that full-time students cast last year — will be shuttered. So will six campus polling places at colleges in Fort Worth, two in Brownsville, on the Mexico border, and other polling places at schools statewide.

“It was a beautiful thing, a lot of people out there in those long lines,” said Grant Loveless, a 20-year-old majoring in psychology and political science who voted last November at a campus in central Austin. “It would hurt a lot of students if you take those polling places away.”

The story at Austin Community College is but one example of a political drama playing out nationwide: After decades of treating elections as an afterthought, college students have begun voting in force.