CNN Political Ticker

Holding Democratic 'blue wall' was crucial for Obama victory

Washington (CNN) - With Florida finally called and the 2012 presidential election falling into the rear view mirror, here's a look at another reason why President Barack Obama won re-election: The Democrats held their "blue wall" - the cluster of eastern, Midwest and western states that have traditionally gone Democratic and were crucial to his victory.

"Democrats held the entire 'blue wall'. They have now won 18 states in at least six consecutive elections, the most states they have won that often ever, since the formation of the modern party system in 1828," says CNN Senior Political Analyst and National Journal Editorial Director Ron Brownstein.