Coming Up on This Week with George Stephanopoulos

— -- This Sunday, Sec. of Health and Human Services Michael Leavitt and Gov. Jon Corzine, D-N.J., join George live in the studio to debate the president's veto of the the State Children's Health Insurance Program (SCHIP) legislation.

And, Gov. Bill Richardson, D-N.M., discusses his presidential campaign, the retirement of New Mexico's senior Republican senator, and his attempt to separate himeslf from the '08 pack. Coming off a speech in which Richardson said his fellow candidates are "wrong" on Iraq, Richardson talks about his plan to end the war.

On our "Roundtable," Katrina vanden Heuvel, Jay Carney, Claire Shipman and George Will.

And our "Voice" this week, Pulitizer Prize-winning Charles Simic on his recent on his appointment as the nation's 15th Poet Laureate.