WASHINGTON — Having ceded considerable ground to Republicans in the debt ceiling fight, President Obama set out Tuesday to reclaim the initiative on the economy, promising a new effort to spur job creation while seeking to position himself as a proven voice of reason in an era of ideological overreach.

After being cloistered in Washington for a month haggling with Congressional leaders, Mr. Obama will embark on a bus tour of the Midwest the week of Aug. 15 — a chance to show his commitment to reviving the economy in a region of important electoral battlegrounds, and to turn the page from the tangled, often toxic, debate in the capital.

On the policy front, Mr. Obama shifted quickly to pushing Congress to adopt a raft of familiar measures to stimulate the flagging economy, including extending the payroll tax suspension for workers, beefing up benefits for the unemployed, approving trade agreements and investing in infrastructure projects.

“While deficit reduction is part of that agenda, it is not the whole agenda,” a grim-faced Mr. Obama said in the Rose Garden moments after the Senate approved the debt limit deal. “Growing the economy isn’t just about cutting spending.” He later added: “That’s not how we’re going to get past this recession. We’re going to have to do more than that.”