That bit about Clinton and the ESRB isn't true. The ESRB came about as an amalgam of a variety of different agencies after Congress delivered an ultimatum to create a workable self-rating system or have a government imposed network. The head of these hearings (which took place in the early 90's) were Joe Lieberman and Herb Kohl. Hillary didn't have anything to do with it.

As for the McCain quote, I found it on digg, linked from unconfirmedsource.com citing the original article in straight talk express. I can't find any information on a publication called Straight Talk Express.