Colorado is the only state to pass a constitutional amendment limiting annual government spending growth and requiring the overage to be returned to taxpayers.
But 27 years after the Taxpayer Bill of Rights (widely known as TABOR) was passed by voters, the future of the revenue cap is in jeopardy.
Gov. Jared Polis (D) is expected soon to sign a bill that would place a referendum before voters that critics say would effectively gut the unique 1992 amendment.
“If this is approved, you blow away the spending caps in TABOR,” said Amy Oliver Cooke, executive vice president of the Independence...