When the GOP stages its first presidential primary next year in New Hampshire, the candidates will be running against each other. But in last night's debate at St. Anselm's College in New Hampshire, they made President Obama their only real target, and passed up opportunities to speak ill of fellow Republicans. What did they do to distinguish themselves? Did Tim Pawlenty challenge Mitt Romney's establishment front-runner status? Did Michele Bachmann make a difference? Did Newt Gingrich show he can still run, even without a campaign staff? We hear excerpts from the candidates and get some expert opinions.