No matter where you live, if your children go to public schools, the textbooks they use were very possibly written under Texas influence. If they graduated with a reflexive suspicion of the concept of separation of church and state and an unexpected interest in the contributions of the National Rifle Association to American history, you know who to blame.
MORE: http://www.nybooks.com/articles/archives/2012/jun/21/how-texas-inflicts-bad-textbooks-on-us/