Supporters of the Common Core State Standards are moving to confront increasingly high-profile opposition to the standards at the state and national levels by rallying the private sector and initiating coordinated public relations and advertising campaigns as schools continue implementation. In states such as Michigan and Tennessee, where common-core opponents feel momentum is with them, state education officials, the business community, and allied advocacy groups are ramping up efforts to define and buttress support for the standards--and to counter what they say is misinformation. Supporters assert that the common core remains on track in the bulk of the states that have adopted it, all but four at last count. The pressure is on, however, for common-core champions to make sure their message gets through. U.S. Secretary of Education Arne Duncan told the U.S. Chamber of Commerce in Washington last month that the private sector had to snap out of what he portrayed as its lethargy and to prevent states from reverting to inferior standards, as he contended states did a decade ago under the No Child Left Behind Act.