I love a good short video laying out the truths, convenient or otherwise:
The Texans would always tell me they could because they were extra-special. But no. Plus the Texas secessionist movement that existed when I lived there had its embassy in a trailer in Texas. The big mistake is not the trailer but the location--you put the embassy in another country. Jeez.
Anyhow, this whole Texas secession thing now is just a small minority of sore losers. Anyone can vote on silly petitions on the White House website. For a while, there was one insisting that we build a death star... Really. Now that is a healthy dose of perspective sauce.