Under a section titled "State Sovereignty," the convention-goers adopted a platform plank that states: "Pursuant to Article 1, Section 1, of the Texas Constitution, the federal government has impaired our right of local self-government. Therefore, federally mandated legislation that infringes upon the 10th Amendment rights of Texas should be ignored, opposed, refused, and nullified.

"Texas retains the right to secede from the United States, and the Texas Legislature should be called upon to pass a referendum consistent thereto," the plank continued.

In another section, according to the blog site Strange Sounds, the platform says that Texas Republicans want the GOP-controlled state legislature to pass a measure during its next session "requiring a referendum in the 2023 general election for the people of Texas to determine whether the State of Texas should reassert its status as an independent nation."

The site went on to note that the belief among many Texans that the state has a right to secede is a "myth":

The myth that Texas can secede from the U.S. continues because of the state's history of independence, according to The Texas Tribune. Texas declared independence from Mexico in 1836 and spent nine years as its own nation before becoming a U.S. state. Texas then seceded from the Union in 1861 before being readmitted following the end of the Civil War in 1870.

The U.S. Constitution makes no provision for states to secede and in 1869, the Supreme Court ruled in Texas v. White that states cannot unilaterally secede from the Union.

"If there was any constitutional issue resolved by the Civil War, it is that there is no right to secede," the late Justice Antonin Scalia once wrote.