"Texas is a free and independent State, subject only to the Constitution of the United States, and the maintenance of our free institutions and the perpetuity of the Union depend upon the preservation of the right of local self-**, unimpaired to all the States." 你理解成Texas宪法允许单方面宣告独立,但是美国最高法院认为你的理解是错误的,你要让你的理解成为正确的,只有靠战争。