About a month ago, Roll Call published a story about how operatives adjusted their TV messaging in anticipation of ad inundation. This week,

about how operatives adjusted their TV messaging in anticipation of ad inundation. This week, the New York Times and

and Ad Age have stellar pieces that dig deep into the economic implications of the nationwide ad blitz. Each article explains how it is getting harder and harder for ads to break through the clutter.

Here are the ones that are worth highlighting in that endeavor today:

Wisconsin Senate

This spot, courtesy of the Service Employees International Union, is one of the best ads of the cycle. Sure, it makes a point that surfaces in a lot of ads — a politician puts his personal gains over those of his home district or state. But what separates this ad from all of the others is how the images and depressing narration are set to an almost sarcastic sounding version of the University of Wisconsin fight song “On Wisconsin.” SEIU put $600,000 behind the ad.

Georgia 12 

He’s no Joe Manchin circa 2010, but let there be no doubt where Democratic Rep. John Barrow stands on the Second Amendment. The campaign was not able to immediately reply to a request for TV buy information.

Nevada Senate

President Bill Clinton has filled his dance card, making campaign stops around the country for various Democrats. It is no surprise he found time to campaign and appear in an ad for Rep. Shelley Berkley (D) — she endorsed then-Sen. Hillary Rodham Clinton (D-N.Y.) in the lead up to the Nevada Caucus in the 2008 Democratic presidential primary. Clinton will pretty much

then-Sen. Hillary Rodham Clinton (D-N.Y.) in the lead up to the Nevada Caucus in the 2008 Democratic presidential primary. Clinton will pretty much stop the world to campaign for past loyalists — especially for those who stuck with the Clintons during the 2008 campaign.

California 30

And because everyone is already sick of political ads, here is a commercial from the 1984 movie “The Karate Kid,” which, incidentally, is also the setting for the Berman-Sherman Congressional race. Roll Call’s Kyle Trygstad has an on-the-ground look at the state of the race. He also saw firsthand last week the Berman-Sherman

. He also saw firsthand last week the Berman-Sherman rough up, proving that they don’t even need the skeleton gang around for an excuse to rumble in the San Fernando Valley.

Bonsai! No mercy! For sure!

Joshua Miller and Kyle Trygstad contributed to this report.