PBS Newshour: How does the separatist referendum affect Ukraine’s upcoming presidential election?

Separatists in Eastern Ukraine declared they are ready to join Russia in Sunday’s secession referendum, but no government has yet recognized the move. Gwen Ifill talks to Steven Pifer of the Brookings Institution and Nadia Diuk of the National Endowment for Democracy for analysis on how it affects Ukraine’s attempts at rebuilding its government and whether there is any chance for negotiation.