[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/POLITICS/07/29/obama.referendum/art.obamavp.ap.jpg caption="Recent polls show a tight race between Sens. Barack Obama and John McCain."]WASHINGTON (CNN) - With an unpopular president and a troubled national economy, large numbers of Democratic and independent voters are increasingly calling for "change" - and looking to Sen. Barack Obama as the solution.
But a surprising trend is emerging: Polls show a tight race between Obama and Sen. John McCain.
Asked whether they would rather see a Democrat or a Republican elected president, voters in a Wall Street Journal-NBC News Poll released July 23 said they prefer a Democrat, by 12 points: 48 percent to Republicans' 36 percent. The margin of error is plus or minus 3.1 percentage points.