There are a few things that influenced this, and they're kind of obvious once you hear about them. The first and most important is that both sides kept on hatin' after the war. It's not widely known, but in the war for independence and the war between the states, there were many loyalists for both sides. read more
President Grant readmitted Texas to the Union in the Spring of 1870, There was controversy in Texas and all Southern states about accepting the 14th Amendment, only Tennessee did quickly. In 1866 Texas refused to adopt the requirements of the US in rewriting the state constitution. read more
Many Texans found these terms hard to accept. Some knew the importance of rejoining the Union. But most had fought a bitter war against the Union. They had little desire to meet its demands. Texans refused to ratify the amendment, and Congress continued to regard Texas as outside the Union. read more