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M. Spencer Green, Associated Press
Republican Presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the University of Chicago, Monday, March 19, 2012, in Chicago.

CHICAGO — Mitt Romney says President Barack Obama is attacking economic freedom in America.

Romney, the front-runner in the Republican presidential race, on Monday blamed Obama's economic policies for a "tepid" recovery. Romney outlined a plan for less government regulation and lower taxes to speed things up.

Romney focused on Obama and his own plan to expand economic freedom in a speech at the University of Chicago, a day before Illinois holds the GOP's latest high-profile presidential primary. Obama was a lecturer at the same college for more than a decade.

Romney says Obama's "assault on our economic freedom" would have stifled famous inventers like Steve Jobs and the Wright Brothers.

Romney didn't offer many specifics in his speech for how he'd change things.