COLUMBUS, OH -- Feathers were ruffled on Sesame Street on Tuesday when the Obama campaign launched a campaign ad starring Big Bird.

The new spot, which airs on cable networks, mocks Mitt Romney for saying during last week’s debate that he would cut public funding to the Public Broadcasting Service – even though he likes Big Bird.

But Sesame Workshop – the nonpartisan nonprofit behind Sesame Street – wasn’t pleased. In a statement, Sesame Workshop objected to the ad: “We have approved no campaign ads, and, as is our general practice, have requested that both campaigns remove Sesame Street characters and trademarks from their campaign materials.”  

The ad begins with an ominous voiceover listing the names of Wall Street criminals, including Bernie Madoff and Kenneth Lay. The deep, dramatic voice then says, “It’s not Wall Street you have to worry about; it’s Sesame Street.”

The camera then cuts to a shot of Big Bird sleeping.

President Barack Obama has seized on Romney’s Big Bird comment to argue that his Republican challenger would crack down on beloved American institutions such as Sesame Street but would allow Wall Street to run wild.

Speaking to a crowd of 15,000 in Columbus, OH the President said, “Today (Romney) decided we’re going after Big Bird. Elmo’s making a run for the border and Oscar is hiding out in a trash can.”

Emphasizing the Sesame Street theme, recording artist will-i-am kicked off his performance at the Ohio event by playing the Sesame Street theme song.  

The Obama campaign has also dispatched Big Bird mascots to stand outside Romney campaign events and even Michelle has entered the fray. On Tuesday, the first lady told supporters in Loudon, Va.: “We all know good and well that cutting Sesame Street is no way to balance a budget.”

Related: 'Sesame Street' wants Obama campaign to yank ad mentioning Big Bird

Speaking in Van Meter, Iowa, Romney fired back: “These are tough times with real serious issues. You have to scratch your head when the president spends the last week talking about saving Big Bird.”

The Romney campaign noted that Obama has in recent days made more public references to Big Bird than Libya – where the U.S. consulate was recently attacked and the ambassador killed. 

But the Obama campaign stands by its strategy.

“The point we’re making here is that when Mitt Romney was given the opportunity to lay out how he would address the deficit … his first offering was to cut funding to Big Bird and that is absurd and hard to take seriously,” Obama campaign spokeswoman Jen Psaki told reporters.

With polls showing Romney improving since the debate, it remains to be seen whether the president’s “Big Bird Offensive” will sway undecided voters.

But one thing is clear – Big Bird says the campaign ad doesn’t fly.

COLUMBUS, OH – As the presidential race heats up in Ohio, President Barack Obama took to the state the same day as Mitt Romney to urge young people to vote -- and to hammer his rival’s positions on foreign policy and cuts to popular government programs.

Brendan Smialowski / AFP - Getty Images

President Barack Obama greets supporters after speaking during a campaign event at the Oval at Ohio State University October 9, 2012 in Columbus, Ohio.

Telling a crowd of about 15,000 at Ohio State University to take advantage of Ohio’s early voting period, Obama said, “Grab your friends and grab everybody in your dorm, grab your fraternity or sorority” and go to a polling place after his speech, adding that buses waited around the corner to shuttle voters there.

Obama’s appearance here comes at the end of a three-day trip that consisted mostly of fundraising events in California, while Romney, who arrived here this afternoon, will hunker down in the state for the next three days, making up for his previously light footprint here.

At Ohio State, Obama also decried Romney’s foreign policy speech Monday during which he criticized the president’s policies and said he would have kept a troop presence in Iraq.

“If (Gov. Romney) got his way, those troops would still be there,” Obama said. In a speech yesterday, he doubled down on that belief. He said ending the war was a mistake,” Obama said.

The president also added some new embellishments to his now-routine warnings that Romney would cut funding for PBS programs like Sesame Street.

“He's decided we're going after Big Bird. Elmo's making a run for the border – and Oscar's hiding out in a trash can. And Governor Romney wants to let Wall Street run wild again, but he's going to bring down the hammer on Sesame Street,” he said.

To hammer home the point, rapper will.i.am, who performed before the president arrived at the event site, blasted the Sesame Street theme song over the public address system.