Oh man has he never read his own state's Constitution?

"no inhabitant of the State shall ever be molested in person or property on account of his or her mode of religious worship; and no religious test shall be required for the exercise of civil or political rights." source

Also the word "Christ" or "Christian" never shows up in the state Oklahoma Constitution, so I'm not sure where he's getting his "Christian state" idea from except possibly out of his own ass.

It goes even further to exclude state money from going to religious purposes:

"No public money or property shall ever be appropriated, applied, donated, or used, directly or indirectly, for the use, benefit, or support of any sect, church, denomination, or system of religion, or for the use, benefit, or support of any priest, preacher, minister, or other religious teacher or dignitary, or sectarian institution as such." source