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.

Here's the State's wrap. And a nice piece from Dan Balz at the Washington Post.

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