The appearance in the Ryan's home state comes a day after Romney announced his choice for a running mate.
The last time Wisconsin voted for a Republican presidential candidate was 1984 and the state is leaning toward President Obama. Now, clearly the Romney hopes to change that with the selection of Ryan as his running mate and the effort to do that started Sunday in the congressman's home district.
"It is good to be home," Ryan said.
The crowd could not have been more enthusiastic. Waukesha is after all is in Representative Ryan's first congressional district and the Republican base turned out in droves to welcome him back as the newly minted running mate.
"I guess you think I made the right decision, the right choice," Romney said.
"I'm so excited. Paul Ryan is a rock star and is exactly what our country needs, along with Mitt Romney," said Laura Stehno.
"He's an honest man. He'll do what's right for this country," said Jim Jones. "He's going to fix the problems that's been created."
Romney and Ryan arrived in Wisconsin after starting their day with a campaign stop in North Carolina. There, like here, the candidates made their case to voters.
"People in America are hurting right now," Romney said. "The middle-class is struggling right now. Incomes are dropped by $4,000 per family under this president. Health care premiums have gone up by $2,500. Utility costs are up, gasoline prices are up. People are having a hard time. They want to know if America's going to come back. It is, if it gets new leadership."
The campaign's hope is that as chairman of the house budget committee, Romney's running mate selection has, at least temporarily, shifted the debate to the economic challenges facing the country.
"In this country, every generation fixes their problems, makes things better and leaves their kids better off. It is our duty to save the American dream for our children," Ryan said.
Both candidates will split up for a while with Romney heading off to Florida and to Ohio, while Ryan will go to Iowa next week.
Both men are hoping to cover as much ground as possible leading into the Republican national convention in the next couple of weeks.