The two Democratic presidential candidates could be debating in North Carolina April 27.

The state Democratic Party and CBS News today formally invited Sens. Hillary Clinton and Barack Obama to debate either at the N.C. Blumenthal Center in Charlotte or at N.C. State University, Jim Morrill reports.

The move comes weeks after CBS first proposed an April 19 debate in the state. The Obama campaign accepted. The Clinton campaign never committed.

"We're working closely with both the campaigns, and while we don't have commitments yet we're very hopeful and excited about the possibility of a debate in North Carolina," said state party spokeswoman Kerra Bolton.

The invitations, signed by party chairman Jerry Meek and CBS News President Sean McManus, come a week after a group of Charlotte-area college presidents invited the candidates to debate at the Blumenthal.

In the invitations, Meek and McManus thanked the campaigns after having "confirmed their commitment to a North Carolina Debate."

The proposed debate would come four days after the Pennsylvania primary and 10 days before North Carolina's contest.

Update: Clinton just said on a conference call that she has accepted a debate on April 27. She said that the location has not been determined.