WASHINGTON (AP) — Under fire in a nation desperate for jobs, President Barack Obama will soon announce a broad package of tax cuts, construction work and help for the millions of Americans who have been unemployed for months, a White House official said Wednesday. Republicans immediately cast doubt about any such plan, setting up a fresh economic showdown as the presidential campaign intensifies.

Obama will unveil his economic strategy in a speech right after Labor Day, hoping to frame the autumn jobs debate by pressuring Republicans in Congress to act or face the voters' wrath. The country is in a deep state of disgust about Washington politics, piling urgency on both parties to help the economy quickly — or somehow position the other side to take the blame.

To pay for his jobs ideas, Obama will challenge the new "super committee" in Congress to go well beyond its goal of finding $1.5 trillion in deficit reduction, with part of the savings used to cover some of his economy-jolting help without sinking the nation deeper in debt. But there, too, Obama already faces trouble from Republican members who have ruled out tax hikes.