HAPPENING NOW: McCain in Defiance, Ohio

[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/10/30/art.cnnlive1.cnn.jpg caption="Watch the event on CNN.com/live."](CNN) - John McCain is holding a campaign rally in Defiance, Ohio this hour, his first of four rallies in the crucial battleground state Thursday.