Although the official numbers aren’t in yet, those who obsess over such things say that the youth vote was out in full force yesterday and might prove to have been the key to Barack Obama’s presidential victory. Polls on and near college campuses saw significantly more voters than past presidential elections, while exit polls show that young voters preferred Obama over John McCain approximately 2 to 1â??the highest share of the youth vote obtained by any candidate since pollsters started recording such data in 1976.