Why is Bush in New Jersey?

I'm a little concerned about why Bush made the time to campaign in New Jersey.

If a candidate is struggling this close to an election they usually spend their campaigning time in states leaning their own way, in a struggle not to lose any more states than they already have.  I had thought that was a definite indicator of a campaign going down.  

But New Jersey is a Kerry leaning state.  If Bush is struggling how can he make time to campaign in a Kerry state?  I hope this doesn't mean his campaign feels confident enough that they don't need to spend any time in red leaning states.  Do people here have any better explanations for Bush's New Jersey visit?

I wish he had been met with a big anti-Bush protest, like what was seen at the convention.