TAKEAWAYS: In South Carolina, a new Democratic landscape

Former Vice President Joe Biden has had a run of bad headlines that can befall a front-runner with a long record and bent toward free-wheeling ineloquence.A 36-year senator, Biden didn't apologize for recently recalling his dealings with racist "Dixiecrats" when illustrating his argument that Capitol Hill once functioned with comity.Biden said rivals — New Jersey Sen. Cory Booker, who is black, demanded an apology — ignored the full context.