Missouri House Speaker Pro Tem Chad Perkins

Missouri House Speaker Pro Tem Chad Perkins, R-Bowling Green, stands at the House dais Monday afternoon.

The Missouri House gave initial approval Monday to legislation that would increase the threshold to pass constitutional amendments proposed through initiative petition.

The bill passed largely along partisan lines, with five Republicans voting in opposition. It needs to be approved by the House one more time before heading to the Senate. If it passes that chamber, it goes on the ballot for voter approval.