You don't say: Questioners at Obama town hall were all campaign supporters

They included: a member of the pro-Obama Service Employees International Union, a member of the Democratic National Committee who campaigned for Obama among Hispanics during the primary; a former Democratic candidate for Virginia state delegate who endorsed Obama last fall in an op-ed in the Fredericksburg Free Lance-Star; and a Virginia businessman who was a donor to Obama’s campaign in 2008.