Article 17 of the Texas Constitution outlines amendment procedures. The full Constitution of the State of Texas is available from the Texas Legislature Online.The Texas Legislature first passes a joint resolution proposing the amendment. A majority of Texas voters then approve the amendment in a special election. This publication attempts to fill a gap in the body of research detailing Texas constitutional history. The Congress, whenever two thirds of both Houses shall deem it necessary, shall propose Amendments to this Constitution. Below is an overview of constitutional amendment processes in the 50 states. I discuss the various possible ways of amending state constitutions. Article V: The Congress, whenever two thirds of both houses shall deem it necessary, shall propose amendments to this Constitution. Miller, 307 U.S. 433, 454 (1939).