Larry King, the celebrated talk show host accustomed to A-list interview guests, has agreed to moderate a debate featuring a squad of minor-party presidential candidates. 

The former CNN giant will guide next Tuesday's debate in Chicago, which will be broadcast on the Internet. The candidates taking part are the Libertarian Party's Gary Johnson, the Green Party's Jill Stein, the Constitution Party's Virgil Goode and the Justice Party's Rocky Anderson.