What Does Media Spending on Campaign Coverage Tell You About Objectivity?

From Fox News.

“The media have spent twice as much money
traveling with the Obama campaign as with John McCain. The Politico
newspaper reports Federal Election Commission records from the time
they announced their candidacy through the end of September, show the
press spent $9.6 million on hitting the trail with the
Obama camp
versus $4.4 million on McCain’s.”