AUSTIN, Texas (AP) — The Texas Senate voted Monday to attach a modest voucher plan to a sweeping, bipartisan school finance bill that already cleared the House — potentially dooming an effort to pump an extra $1.6 billion into classrooms and begin overhauling the troubled way the state pays for public education.

Republicans control both chambers of the Texas Legislature but the Senate has for years advanced voucher plans seeking to offer public money to students attending private and religious schools, only to have such proposals repeatedly and resoundingly defeated in the House.

Another such...