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WAUKESHA, Wis. - Mitt Romney shot back today at the new ad released by President Obama's re-election campaign, accusing the president of not taking responsibility for his administration's mistakes.

"The president put an ad out yesterday talking about gasoline prices and how high they are and guess who he blamed? Me," said Romney, speaking at a Cousins Subs sandwich shop. "Maybe after I'm president I can take responsibility for things I might have done wrong, but this president doesn't want to take responsibility for his mistakes."

"I can tell you this as well, if I become president of The United States I will undoubtedly not get everything perfect," he said. "There may be some things that don't work out as well as I'd hoped. I will acknowledge that. I will say that I take responsibility for what goes well and what doesn't."

"I know the president is going to try to take credit for everything that happens in America that's good," Romney said. "I knew that feeling when the Red Sox won the World Series. I wanted to say, 'That's me,' you know, but I didn't say that."

"But this president is unwilling to take responsibility for his mistakes and he's going to be looking everywhere he can to find someone else to blame," Romney said.

Before making the remarks Romney and Rep. Paul Ryan doled out sandwiches to patrons, offering turkey, ham and cheese and Italian subs to the long line, many of whom pledged their support to Romney.