Newt Gingrich Co-chairman Stacey Campfield now backs Rick Santorum

The co-chairman of Newt Gingrich’s Tennessee campaign changed his allegiance Saturday to Rick Santorum, saying he hopes to set an example that leads to conservatives aligning behind a single candidate against “establishment Republican” Mitt Romney.

State Sen. Stacey Campfield’s surprise move comes with Santorum leading in Tennessee polls though under attack within the state from both pro-Romney forces and Gingrich in a frenetic finale of candidate competition for votes in Tuesday’s presidential preference primary.