STERLING HEIGHTS, Mich. -- Arizona Sen. John McCain and his running mate, Alaska Gov. Sarah Palin, tried yesterday to ride whatever momentum they generated from this week's Republican convention, beginning their sprint to Election Day by campaigning together in the battleground states of Wisconsin and Michigan.

Late in the day after the balloons and fanfare of the St. Paul convention, the GOP presidential ticket stood before a packed amphitheater in this suburban Detroit swing county of Macomb, known for its blue-collar "Reagan Democrats."

"These are tough times for many of you," Mr. McCain said. "In the state of Michigan, times are tough. You're worried about keeping your job or finding a new one. Many are struggling to put food on the table. ... All you've ever asked of government is for it to stand on your side, not in your way, and that's what I intend to do -- stand on your side and fight for you."

Mr. McCain's Democratic rival, Illinois Sen. Barack Obama, meanwhile, campaigned in the swing state of Pennsylvania, emphasizing economic issues amid yesterday's news that the U.S. unemployment rate reached a five-year high of 6.1 percent in August, as employers cut 84,000 jobs.

Earlier in the day, the McCain-Palin ticket stood before a crowd of thousands assembled along the main street of downtown Cedarburg, a suburb of Milwaukee. Mr. McCain said it was places like this staunchly Republican enclave of 11,000 that will propel him and his vice-presidential choice into the White House.

"This turnout in Cedarburg is what this campaign is all about," he told the enthusiastic crowd. "We're going to go across the small towns of America, and we're going to give them hope, and we're going to give them confidence, and we will bring about change in Washington, D.C. We won't [just] talk about issues, but we will do something about them."

Ms. Palin recited her biography and many of the lines from her convention speech. She also continued to throw sharp rhetorical punches, with pointed digs at the Obama-Biden ticket.

She again mocked Mr. Obama's time working as a community organizer. And, noting Mr. Obama's appearance Thursday on the Fox News TV show hosted by Bill O'Reilly, Ms. Palin told the crowd that that Mr. Obama had finally admitted that the troop "surge" in Iraq had been a success.

Mr. Obama did acknowledge for the first time publicly that the surge worked, but he also took care to note that the Iraqi government hasn't achieved the political reconciliation that was the ultimate goal of the surge. He also maintained his position that he will withdraw U.S. combat troops on an orderly timetable and end the war.

Ms. Palin said: "Just last night, Senator Obama finally broke and brought himself to admit what all the rest of us have known for some time, and that's thanks to the skill and valor of our troops, the surge in Iraq has succeeded," she said. "Senator Obama said, and I quote, 'It succeeded beyond our wildest dreams.'

" 'I think,' Senator Obama said, 'that the surge succeeded in ways that nobody anticipated.' I guess when you turn out profoundly wrong on a vital national security issue, maybe it's time to pretend that everyone else is wrong, too," she said.

Mr. Obama focused yesterday on the economy, visiting a specialty-glass factory in Duryea, Pa., and issuing a statement tying Mr. McCain to the latest unemployment news. "Today's jobs report is a reminder of what's at stake in this election," the Democrat said. "John McCain showed last night he is intent on continuing the economic policies that just this year have caused the American economy to lose 605,000 jobs."