Want to know what John McCain and Barack Obama are reading? Well, only they can tell you what they actually read, but Google offers them a way to show us a list of what they want us to think they read. Each candidate has their own page which they share items in Google Reader.
A list of some of the "Power Readers" who you can follow what they read is available at http://www.google.com/googlereader/powerreaders/index.html
To jump directly to John McCain's page go to http://www.google.com/reader/shared/00430365334900592587.
For Barack Obama head on over to http://www.google.com/reader/shared/16774216154071822567
"Today we announced that both the Obama and McCain campaigns as well as political contributors from Newsweek to POLITICO are sharing news with Google Reader this election season. You can see their most recently shared items at google.com/powerreaders, or add the feeds from your favorite campaign or journalist to Reader to keep up with newly posted items and comments."