07/18/2008 05:12 am ET | Updated May 25, 2011

Chuck Todd: Electoral Map Shifting To Obama

A month ago, NBC's electoral map showed an exact tie between Obama and McCain -- including 'base' and 'lean' states, each had 200 electoral votes. But on this month's map, Obama has opened up a 210-189 lead over McCain, with 139 electoral votes in the toss-up column. Watch Chuck Todd explain: