Kerry's emphasis on Science. From his website.

[coloradodem2005]

Kicking off a week focused on his plan to make the American economy stronger at home through scientific discovery, technology and innovation, Democratic Presidential candidate John Kerry today pledged to lift up families and create new jobs by once again making America the world leader in science. While the Bush administration has politicized science, Kerry will put America back on the path of scientific excellence with a commitment to scientific research based on fact – not ideology.
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Kerry was also endorsed in a letter Monday by 48 Nobel Prize winning scientists. The scientists issued a letter calling Kerry a “clear choice for America’s next President” who will “restore science to its appropriate place in government and bring it back into the White House
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http://www.johnkerry.com/pressroom/releases/pr_2004_0621.html