WASHINGTON -- President Obama said Friday that the recent turnaround for U.S. automakers vindicated his unpopular decision to bailout the industry.

With Americans facing a still-limping economy and potentially pivotal congressional elections in three months, Obama is seizing on the positive new trends in the auto industry as evidence of broader economic good news. He launched an intensive campaign to highlight the story as a concrete area of improvement with direct ties to his administration's actions.

"This industry is growing stronger," Obama declared from the floor of Chrysler's Jefferson North plant, which recently added a second shift of production to the tune of about 1,100 jobs. "You are proving the naysayers wrong."

From here, where the president greeted workers making Jeep Grand Cherokees and sat in a mostly finished model, Obama was going to nearby Hamtramck to visit a GM plant planning to assemble the Chevrolet Volt rechargeable electric car. That factory is one of nine the automaker will keep open during the usual two-week summer shutdown.