Sen. Lamar Alexander, Tennessee Republican, on Monday hails GM's announcement that it will begin building the Chevrolet Equinox at its idled Saturn plant in Spring Hill, Tenn., next year. (Associated Press)

Sen. Lamar Alexander, Tennessee Republican, on Monday hails GM's announcement that it will begin building the Chevrolet Equinox at its idled Saturn plant in Spring Hill, Tenn., next year. (Associated Press)