► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />What looked like a small bounce after the Democratic National Convention has grown into a widening lead for US president Barack Obama. Ed Luce discusses what Mitt Romney can do to close the gap with the incumbent.<br /><br />Related article: http://video.ft.com/v/1863231152001/Ohio-voters-ponder-key-election-question
