Video embedded below.
"A stream of voters arrived at election offices across Iowa to cast their ballots. Waves of absentee ballots have started landing in mailboxes in 30 other states. And more than a month before what the calendar says is Election Day, President Obama began delivering his closing argument to voters.
The rise of early voting, which got under way here on Thursday, is changing the rhythms of how Americans elect their presidents. The president is not as fixated on his Election Day showdown with Mitt Romney, but rather on successfully executing a plan to accrue more votes over the next 40 days."