CINCINNATI - Republican Sen. John McCain (news, bio, voting record) campaigned on Tuesday for a conservative congressman who publicly disagreed with the potential 2008 presidential candidate on how to deal with illegal immigration. Six-term Rep. Steve Chabot (news, bio, voting record) made it clear that while he welcomed McCain's appearance at a breakfast fundraiser, the two are on opposite sides on how to deal with the nation's estimated 11 million illegal immigrants. "This happens to be an area where the senator and I don't agree," Chabot said after McCain attended the fundraiser for the Ohio congressman's re-election campaign. Chabot said...