Senate Minority Leader Mitch McConnell holds a rifle on stage at the Conservative Political Action Committee annual conference earlier this year. Susan Walsh/AP hide caption

itoggle caption Susan Walsh/AP

Addressable TV advertising technologies, which allow advertisers to selectively target audiences and serve different ads within them, are poised to play a bigger role in political campaigns. Matt Rourke/AP hide caption

itoggle caption Matt Rourke/AP

Sen. Mark Pryor, D-Ark., speaks in Stuttgart, Ark., in August. Pryor's latest ad in his re-election campaign hammers his GOP opponent's position on the government shutdown. Danny Johnston/AP hide caption

itoggle caption Danny Johnston/AP

The Campaign to Defeat Barack Obama, a small-donor PAC, has launched a bus tour to reach conservative voters in hotly contested states, while trying to raise money to launch an anti-Obama TV ad. Yfat Yossifor/Courtesy of Mlive.com hide caption

itoggle caption Yfat Yossifor/Courtesy of Mlive.com

Will these Green Bay fans be cheering as much as they did during the 2011 Super Bowl when their beloved Packer games are interrupted by local political ads this fall? Matt Ludtke/Getty Images hide caption

itoggle caption Matt Ludtke/Getty Images

President Obama's re-election campaign has released four new Spanish-language ads, each ending with the phrase: "Esta eleccion si importa," which in English means, "This election does matter." barackobama.com hide caption

itoggle caption barackobama.com