Of course not, but the MSM would like to have you believe otherwise.
http://news.yahoo.com/s/ap/20080603/ap_on_el_pr/campaign_analysis_2;_ylt...
For a good counter to this "analysis" I'd read
http://www.counterpunch.org/kosko05092008.html
and
http://www.counterpunch.org/fantina03292008.html