GRAND RAPIDS, Mich. - Republicans Mitt Romney and Sen. Sam Brownback (news, bio, voting record) promoted their presidential campaigns before nearly 3,000 party activists at the Michigan GOP convention Saturday.

Romney reminded the crowd that he grew up sharing the Automotive News each morning with his father, George, who headed American Motors Corp. before serving as Michigan’s governor from 1963 to 1969.

The younger Romney, a former Massachusetts governor, said his father brought many of the lessons he learned from business to the governorship.

“He got Michigan moving again,” Romney said, before running through his stands in opposition to abortion and same-sex marriage and in favor of tight controls on illegal immigration. “It’s time for Republican principles to come back to Michigan again.”

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