LOL! Yeah, that canard comes up every so often. The 'Texit" movement makes a lot of noise but doesn't ever seem to get any support from actual Texans. The current drive got about 140,000 signatures. The population of Texas is about 29.15 million. I wouldn't say that "Texas has expressed a desire to secede" when only about 2% of folks signed a petition. And Texas can't secede legally. So regardless of what the rest of the uninformed States think, Texas ain't going anywhere.
The theme of independence has recurred throughout the history of Texas, which was a republic from 1836–45. But the Civil War established that a state cannot secede.
www.texastribune.org