The Nation's Editor and Publisher, Katrina vanden Heuvel, will be on CNN's Fareed Zakaria GPS this Sunday at 10 AM & 1PM ET. (Check listings here.) The topic is the news of the week, and President Obama's relationship with progressives and the left. Are liberal supporters energized? The eclectic panel includes Arianna Huffington, former New York Governor Eliot Spitzer and Ross Douthat of The New York Times. Tune in - we'll have video Monday.