Suzanne Malveaux reports from Columbia, South Carolina about talk show host Oprah Winfrey's possible influence on these key voters - who are also the core of the media mogul's loyal viewership.
Former New York Mayor Rudy Giuliani
WASHINGTON (CNN) - Rudy Giuliani said Sunday that police, not the former New York City mayor himself, had decided his then-girlfriend Judith Nathan needed publicly-funded security during their extra-marital affair.
"I did not make the judgment, I did not ask for it, Judith didn't particularly want it," the former New York City mayor said in an interview on NBC's Meet the Press. "But it was done because [police] took the view that it was serious and it had to be done that way."
He bristled when asked by interviewer Tim Russert if a hypothetical presidential mistress would rate the same level of protection, saying a Secret Service detail "would not be appropriate" in the absence of a credible threat.
COLUMBIA, South Carolina (CNN) - Here's a quick look at what's making news in South Carolina politics this morning:
Sen. John McCain is back in the Palmetto State once again, meeting with local residents at Al's Family Restaurant in North Augusta. Later, he delivers a speech on energy security in Aiken and holds a meet and greet in Batesburg-Leesville.
Almost 30,000 people came out to see Oprah and Barack Obama on Sunday. Watch the video here.
The Obama campaign took full advantage of the political bonanza, targeting undecided voters waiting in line outside the stadium and signing up new campaign volunteers.
A new Mason-Dixon poll shows South Carolina is now up for grabs ... for both parties.
Obama has erased Sen. Hillary Clinton's long-held lead in the polls, with Clinton now at 28 percent to Obama's 25 percent. John Edwards, perhaps benefiting from his recent TV ad buy, has creeped up to 18 percent.
As for the Republicans, the poll still shows a toss-up of a race. But one thing has changed: Mike Huckabee. The former Arkansas governor has rocketed from fifth to first in the polls, changing the game in South Carolina. Read all about it here.
– CNN South Carolina Producer Peter Hamby