"John McCain doesn't run with the Washington herd," said Palin, the surprise pick as McCain's running mate.
"It's over. It's over. It's over for the special interests," McCain promised. "We're going to start working for the people of this country."
Twelve hours after leaving the Republican convention in Minnesota, McCain and Palin were cheered and applauded by a throng of thousands that wound down several streets of Cedarburg, a traditional Republican enclave near Milwaukee.
Later, they appeared before thousands who filled Freedom Hill Amphitheater in Michigan's Macomb County, home to working-class, union voters who Republicans hope to win with conservative positions on cultural and social issues.
"These are tough times for many of you, in the state of Michigan, times are tough," McCain said. He said many people here were worried about keeping their jobs and putting food on the table.
"Send a team of mavericks who aren't afraid to go to Washington and break some china," McCain implored.
McCain's campaign as a political outsider and rebel is complicated by the fact that he has served in the Senate for 22 years and solidly endorsed key elements of President Bush's record, most notably the war in Iraq and hundreds of billions of dollars in tax cuts. McCain originally opposed the tax cuts but changed his mind as he sought the GOP presidential nomination.
McCain took note of gloomy economic news from Washington: The government reported that the nation's unemployment rate soared to a five-year high of 6.1 percent in August as employers slashed 84,000 jobs.
"Today, the jobs report is another reminder these are tough times," McCain said. "They're tough times in Wisconsin, they're tough times in Ohio, tough times all over America." He did not say how he would fix the economy.
"Isn't this the most marvelous running mate in the history of this nation?" McCain said of Palin, who introduced him as "the only great man in this race, the only man in this election ready to serve as our 44th president."
Two months before the election, small towns are a key target for McCain as he tries to lure independent and blue-collar voters essential for him to win.
Many people in the Cedarburg audience held digital cameras and video cameras above their heads to get a shot as McCain's "Straight Talk Express" bus rolled into town. Palin said it was their intention to bring their campaign directly from the convention to "small-town America" like the small town in Alaska where she once was mayor.