On The Lookout For VP Announcements

The presidential candidates still have not announced their vice presidential running mates. There is speculation Barack Obama will announce his choice by Friday. (NPR)

The Democrat and his newly named running mate will campaign together in Springfield, Illinois, Saturday, where Obama formally launched his White House bid. (AP)

And, a look at how the candidates are working to woo voters in the Rocky Mountain West and veterans. (NPR)