Ok, so technically its part of America, but only Texas and Virginia still have a "legal" right to secede from the USA...
Actually, that isn't entirely true (I am an avid Civil War buff).
Texas does not have the right to secede, any more than any other state does. Which is not to say that Texas, or any other state, can't secede if it has a mind to; after all, 11 states did back in 1861. Many modern Texans have the vague idea - as did most secessionists - that because Texas entered as a former republic, it retained the right to leave the Union if it saw fit. However, no such clause appears in the congressional act authorizing Texas to join the Union. Because it was once independent, because it at one time did secede from the Union, and because its ideology is far different from that of the rest of the US, Texas has always clung to the idea of a guaranteed right of secession as a mark of its specialness and as a source of reassurance in case all else fails.
One privelege Texas does reserve, and a condition that appears in the resolution approving its statehood, is the option to subdivide itself into as many as four states (a total of five). But Texas is more likely to leave the Union again than to fragment its identity and its land.
The four states who use the title "Commonwealth" (Kentucky, Pennsylvania, Massachusetts,and Virginia) also erroneously believe that that title gives them a Constitutional right to secede. It doesn't. It's a title and nothing more. There is no "legal" precedence for secession for any state.
Anyway, just thought I would stir the pot a bit and toss in some fact about something I am versed in.