MAUMEE, Ohio — Defending his economic policies, President Barack Obama said Thursday he was betting Americans wouldn’t lose interest or heart in the upcoming election despite a political stalemate in Congress. He said the next election would set the country’s economic outlook for the next decade and beyond.

Kicking off a two-day bus tour of northern Ohio and Western Pennsylvania, Obama described a political system at a crossroads and argued his Republican rival, Mitt Romney, would pursue economic policies that favor the wealthy at the expense of the middle class. The president said he was willing to work with “anybody who believes that we’re in this together.”

“I’m not a Democrat first, I’m an American first,” Obama said.

Holding his first campaign event since the Supreme Court’s decision a week ago to uphold his health care law, Obama defended his sweeping changes to the system.

“The law I passed is here to stay,” he said. “It is going to make the vast majority of Americans more secure.”

Obama sought to draw attention to the economies in both states that have been helped by a stronger auto industry.

Obama said the experience in both states, where joblessness is below the national average, can be replicated across the country.

“There are some folks who are betting that you will lose interest, that are betting that somehow you are going to lose heart. But here you are in the heat,” Obama said.