[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/09/15/art.cnn3.cnn.jpg caption="Catch Biden's event on CNN.com/live."](CNN) - Democratic VP candidate Joe Biden is holding a campaign rally in St. Clair Shores, Michigan.
The latest CNN/Opinion Research Corporation poll suggests the Democratic ticket is holding a narrow lead in that key battleground state.
Check out the event on CNN.com/Live
Update: This event has ended, but stay with CNN.com/live for all the day's events on the campaign trail.'