A Republican strategist involved in the planning, said conservative billionaire Joe Ricketts wants to bankroll an effort publicizing the racially insensitive sermons delivered by the Jeremiah Wright at a Chicago church Obama once was a member of. Wright’s sermons drew considerable attention and presented a problem for Obama in 2008 as he sought the Democratic presidential nomination.

The strategist spoke on condition of anonymity to discuss private strategy sessions.

The plan would involve at least $10 million in advertising. News of the campaign was first reported by the New York Times.

Republican Mitt Romney refused to answer questions about the effort and the Jeremiah Wright plot as he boarded a plane Thursday in Miami.