It turns out, the first $100 million a mile extension of Phoenix light rail is having to be postponed. The reason? Its just too much money for the local pols. So why is this one piece being postponed when any number of other extensions, such as the $230 million a mile airport extension, still going forward? Well, it turns out that all those other lines (as well as the original) use large dollops of federal money, while the delayed extension was planned to use only local money.
It turns out that we are not willing to pay the full freight of building light rail for ourselves, and only want to do it if we are able to grab at least half the cost from people outside of Arizona. AZ Republic story