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captioning sponsored by cbs captioned by dia access group at wgbh candidates are psyching support from the nation's fastest-growing voting bloc. here's carter evans. >> reporter: when hillary clinton held this rally in san gabriel, california, home to the country's largest asian-american community, she also launched a campaign to target what may be a key vote in november. >> i'm very proud to have so many asian-americans and pacific islanders working with me. >> reporter: they are the country's fastest-growing political constituency whose registered voters doubled to 4 million between the 2008 and 2012 elections. >> we've gone from being marginalized to becoming the margin of victory. >> reporter: leading the asian vote initiative is congresswoman judy chew who brought in supporters from around the country. >> certain states will have a huge effect on the outcome of as nevada, such as virginia. >> you're from? >> las vegas, nevada. >> we have votes. we know how to deliver those votes. >> reporter: shakir, a banker, points to the 2014 senate election in his state, virginia. >> thank you

captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org >>> we begin with the broncos drive to the championship. new england landed at dia half an hour ago. and the helicopter showed us the team getting off of the plane. the broncos fans are certainly ready with hundreds decked in orange and blue. and the players have got to be ready as well. they spent today practicing. mark is checking in from sports authority field. it will be louder out there come sunday. >> reporter: yes, all is quiet