[cnn-photo-caption image= http://i.l.cnn.net/cnn/2008/POLITICS/03/02/obama.grassroots/art.jm.cnn.jpg caption=" Campaign volunteer Jeanine Michael has played a big role in Barack Obama's ground organization."]COLUMBUS, Ohio (CNN) - Hillary Clinton drew the early support of much of Ohio's Democratic Party and most of its high-wattage politicians. And she was the overwhelming choice of the blue-collar workers who form much of the state's Democratic base.
Barack Obama had his own staunch - if slightly less high-profile - Ohio loyalists: Valli Frausto and Jeanine Michael.
Now the Illinois senator has national momentum, and the resources to outspend Clinton on television advertising here by roughly 2-to-1. Still, as Tuesday's primary approaches and the battleground shifts from the airwaves to the the task of turning out the vote, the passion of a candidate's ground troops, not the size of the war chest, might be the most critical ingredient for success.
- CNN Associate Political Editor Rebecca Sinderbrand