As the Colorado Supreme Court will not take up the appeal of the case, then the ruling of the lower Court of Appeals is the final say.  That panel found that the TABOR Foundation did not have standing and could not continue the case on the merits.  Imagine, taxpayers spend $400 million more each year and they don’t have standing!  The Court appears to have dropped any attempt to be true to the Colorado constitution and to respect that citizens are (supposed to be) in charge of their governments.

Order of Court–pet. for Cert.–tabor Found. v. Colorado by The Forum on Scribd