Timothy Stanley : The Wednesday evening presidential debate comes at a critical time . He says Santorum is threatening to displace Romney as the front-runner in the race . But he also notes that Romney's campaign has been plagued by infighting and missteps, including his decision not to release more tax returns than required of candidates running for president. Stanley : Look for Romney to try to adopt a folksy , populist tone .
Timothy Stanley : The Wednesday evening presidential debate comes at a critical time . He says Santorum is threatening to displace Romney as the front-runner in the race . He says while Santorum is liked by GOP voters , many of them have doubts about Romney . Stanley : Look for Romney to try to adopt a folksy , populist tone .