If the reception he's getting in Beaver, Pa., is any indication, Joe Biden may well give Barack Obama some of that boost he wants in this big swing state. The crowd - estimated at more than 8,000 by the local police chief - went wild at an outdoor rally here tonight in western Pennsylvania when the Democratic nominee's running mate, a Pennsylvania native, was introduced tonight and told them, "My name's Joe Biden. I'm from Scranton, Pa." and said support from steelworkers was key to his first election as Delaware senator in 1972. Obama and Biden were an hour late to the Beaver event. It was their first rally since formally accepting the nomination at the Democratic National Convention - although earlier in the day they'd stopped jointly in the Pittsburgh area to tour a business and to get ice cream. Obama drew lots of applause from this crowd when he said "Let's face it, John McCain's not going to bring change." He didn't mention McCain's choosing a woman as his running mate. "I need Pennsylvania," Obama told the crowd. "I need Beaver, Pa." Leo Girard, international president of the United Steelworkers of America, who warmed up the crowd for Obama and Biden, told everybody that McCain running mate Alaska Gov. Sarah Palin's husband was a member of the Steelworkers union. But he said, "Being the wife of a steel worker doesn't necessarily qualify you for president."