What does the Colorado constitution say about this issue?
Colorado State Constitution
Article IX Education
Section 7. Aid to private schools, churches, sectarian purpose, forbidden.
Neither the general assembly, nor any county, city, town, township, school district or other public corporation, shall ever make any appropriation, or pay from any public fund or moneys whatever, anything in aid of any church or sectarian society, or for any sectarian purpose, or to help support or sustain any school, academy, seminary, college, university or other literary or scientific institution, controlled by any church or sectarian denomination whatsoever; nor shall any grant or donation of land, money or other personal property, ever be made by the state, or any such public corporation to any church, or for any sectarian purpose.