Barack Obama’s campaign has spent millions on advertising in Pennsylvania and set up offices throughout the state. But largely absent so far has been the Democratic presidential candidate himself.

Since wrapping up the nomination in early June, Obama has campaigned in the state just twice — in Philadelphia and Pittsburgh in June.

That compares with a half-dozen stops by GOP rival John McCain in the past two months. The Arizona senator made his latest appearance Monday at a label manufacturer in Montgomery County and is scheduled to return next week.

Where has the Illinois senator been?

Expanding the electoral map, Obama and his backers say, by focusing on states that haven’t been competitive for Democrats in years. Among them are Colorado, North Carolina and Virginia.
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