McCain's Message: I Can Beat Hillary
Sure, McCain will attempt to neutralize the economy issue, and, of course, will continue to talk up his security credentials -- but the big change in McCain's message will be that he has begun stressing that he is the Republican who can win a General election.
In short, McCain wants voters to decide based on the question: Which Republican can beat Hillary (McCain knows that polling shows he wins on that issue).
This was confirmed to me last night by a McCain spokesperson.
The video that Mary Katherine Ham posted below shows this new "electability" strategy in full force...