The Nebraska Democratic Party bought $200,000 in airtime this week to boost endangered Sen. Ben Nelson (D-Neb.) — a continuation of an aggressive campaign to save the two-term Senator in 2012.

In the ad, Nelson attempts to speak over a garbled montage of his colleagues, including House Minority Leader Nancy Pelosi (D-Calif.), Speaker John Boehner (R-Ohio), Sen. Jim DeMint (R-S.C.) and Rep. Emanuel Cleaver (D-Mo.).

“They don’t get it. They put politics ahead of what’s best for the country,” Nelson says straight to camera. “We need to balance the budget, but not on the backs of senior citizens, bring our troops home with pride and dignity and invest in American jobs, and American’s future.”

Public polls show that Nelson is one of the most vulnerable Democrats up for re-election this cycle. Nelson campaign manager Paul Johnson told Roll Call the advertisement is intended to counter the $500,000 spent this summer by conservative groups attacking the Senator.

The Nebraska Democratic Party bought a full-page newspaper ad earlier this year blasting Nelson’s most prominent opponent, state Attorney General Jon Bruning. Johnson said the state party also bought radio advertisements.

When Nelson caught flak for voting for the president’s health care overhaul bill in 2009, the Senator also ran television ads aimed at bolstering his image.

In addition to Bruning, state Sen. Deb Fischer and state Treasurer Don Stenberg are also seeking the GOP nomination.