in charlotte. president obama visiting colorado part of a spring state tour before giving a nomination speech on thursday. governor mitt romney in new hampshire starting his week preparing for the presidential debate the first of which is one month from tomorrow. congressman paul ryan hitting the road for a campaign event at eastern carolina university. in greenville, north carolina that is just across the state from the site of the democratic national convention. in 2008 african american voters turned out in record numbers and overwhelmingly support candidate barack obama. now four years later the question for many black americans may not be for whom to vote but whether they will vote at all. shannon explains. >> oo i think there is a danger some african americans, black people stay home. >> they made up 13 percent of the electorate sent president