President Barack Obama is coming back to Wisconsin later this month, his fourth visit to the state in recent months as the fall election approaches.

His repeated trips here hint at how important Wisconsin has become for Democrats as they fight to hold onto control of the governor's office, a U.S. Senate seat, several congressional seats, and both houses of the state Legislature in the midterm elections.

Although details have not been released, Obama will be in Madison on Sept. 28 for a rally "focused on young people and the change that matters to them," according to the Democratic National Committee. His appearance here is one of four major "Moving America Forward" rallies planned before the Nov. 2 general election, including events in Philadelphia on Oct 10, Ohio on Oct. 17, and Las Vegas on Oct. 22.

Obama has become a regular visitor to Wisconsin lately, with stops in Racine, Menomonee Falls and Milwaukee. He spoke at an August fundraiser for Milwaukee Mayor Tom Barrett, the presumptive Democratic nominee for governor.

And the president was just in Milwaukee on Monday to speak at LaborFest and announce details of a proposed $50 billion stimulus plan to rebuild roads, railways and runways."