Detailed text transcripts for TV channel - MSNBC - 20100421:18:31:00
The statements. new york's mayor michael bloomberg's gun control group is out with a new $250,000 television ad campaign. the ads are running in five states. take a look. >> 1999, the columbine school massacre. the killers got their guns because of a gap in the law called the gun show loophole. 2008, barack obama and john mccain support closing the gun show loophole. >> mayors against illegal guns launched the campaign to coincide with the 11th anniversary of the columbine massacre. joining me by phone is tom mazar whose son daniel was killed at columbine. he is also the spokesman for colora...