Looks like the mayors want single-payer:

Baltimore Mayor Sheila Dixon is one of seven U.S. mayors to craft a bill supporting single-payer national health insurance, a proposal being pushed by the U.S. Conference of Mayors.

The resolution has been formally adopted by the U.S. Conference of Mayors, a national organization representing cities of more than 30,000, and is making its way through the U.S. Congress.

With all the problems facing Batimore (and, I assume, other cities nation-wide), I'm unsure why Mayor Dixon is wasting her time promoting single-payer. If she's interested in the flaws of such a system, she may want to read a recent report from the Maryland Public Policy Institute.