In the year after the massacre at Sandy Hook Elementary School in Newtown, Conn., gun-control groups spent $14.1 million on TV advertising. According to Kantar Media's CMAG, that gave such groups a seven to one advantage over gun-rights organizations, which only spent $1.9 million.
At the same time, gun-rights groups, led by the National Rifle Association, spent about $6.2 million on lobbying instead of advertising, according to a study by the Sunlight Foundation.
The gun-rights groups may have had the better tactic -- especially in a quiet election year.
White House efforts to strengthen gun-control laws went nowhere. Watered-down legislation to broaden FBI background checks of gun buyers failed in the Senate. And the GOP-controlled House did not even consider addressing gun-control legislation.