As the presumptive Republican VP candidate prepares to take the convention stage, PrawfsBlawg notes an interesting dynamic which may yet emerge.  From Senator McCain's introductory campaign event:

The person I'm about to introduce to you was a union member and is married to a
union member and understands the problems, the hopes and the values of working
people, knows what it's like to worry about mortgage payments and health care
and the cost of gasoline and groceries . . . . 

PrawfsBlawg's analysis will become more compelling to consider as the campaign unfolds:

Many have suggested that McCain selected Palin to help win over
Hillary Clinton voters -- middle- and working-class folks who live in the
heartland and are feeling the brunt of our economic woes.  And indeed, if you
were reading the above speech without any other context, you'd probably think it
was a Democrat talking.  McCain seems willing to take his campaign on a much
more populist turn.  He's going after the union vote.

The real question, in my view, is whether policy will follow
rhetoric.  Will McCain-Palin advocate for greater restrictions on trade?  Will
they adopt a more restrictive position on immigration policy, or will they drift
back towards McCain's more pro-immigration views?  And given that Palin is a
former union member, and her husband is a Steelworker, will they support the
Employee Free Choice Act?