Closed Town Hall Meetings

How can a true town hall meeting be closed? Anything is possible with this administration. It doesn't matter how unfair or unAmerican it looks. Mitch Manzella writes of his experience trying to get a ticket to a Dick Cheney event. My question is who pays for AirForce One to fly to these events? The Republican Party? They should seeing as how Republicans are the only ones allowed to attend.
Read Mitch's story here