here's nbc's rehema ellis. >> reporter: it was an old-fashioned texas showdown, liberal board members objected to what they called a white-washing of history. >> we don't want to read these. my gosh. they deal with hispanics, hispanic issues, the alamo, civil rights, you know? just our participation, where we worked together, no, these are not acceptable. >> reporter: the texas state board of education's block pushed through texas rewrites which they insist were long overdue. >> i feel very relieved that we were able to go through that much amount of work and to come up with a very positive majority vote in favor of adopt the document. >> reporter: among the changes, textbooks must now include mention of the conservative resurgence of the '80s and '90s, the national rifle association, the moral majority, and include the idea that the founding fathers may not have intended a separation of church and state. even some vocabulary has been changed, references to the slave trade would be changed to the atlantic triangular trade. because nearly 5 million textbooks are purchased by the texas