This is from Snopes: http://www.snopes.com/politics/obama/service.asp

It gives a very logical explanation of the very obvious mis-statement.

And it was covered by the press quite well at the time: http://thecaucus.blogs.nytimes.com/2008/05/27/oba...

As Daniel Patrick Monyihan said “people are entitled to their own opinion, but they are not entitled to their own facts.”

In their day, weren't they considered liberals?

http://www.msnbc.msn.com/id/30183355/ says it all!