RALEIGH, N.C. – Tickets are now available for a debate between Presidential candidates Barack Obama and Hillary Clinton — a debate that one of the two has not yet committed to.

The North Carolina Democratic Presidential Debate is scheduled for Sunday, April 27 at the RBC Center. But Obama’s campaign says they’re still not sure that date will work with his schedule.

Still, the state Democratic Party is advertising a limited number of tickets available. To be eligible for the random drawing, apply online at www.ncdp.org.

This debate will be held in partnership with the North Carolina Democratic Party, CBS News and North Carolina State University.

CBS will broadcast the 90-minute live debate, beginning at 8 p.m., immediately following 60 Minutes. Katie Couric and Bob Schieffer will moderate.