Fastracks Pricing "Optimistic"

At what point to the voters put an end to the project? It looks like it'll soon by 50% over budget and before it lays it's first rail.

Denver Post :
"Overall, the capital construction estimate of $6.1 billion is probably at the optimistic," or low side, DRCOG said, adding that "upward cost adjustments are likely" and "future increases to the cost of the FasTracks system should not be surprising."