By his own admission, Rush is often "out" when a big story breaks. He jokingly says that the Dems wait for him to go on vacation to break stories, since he won't be around to comment. I think rather that he has sources that tip him to major events on the horizon. Rush then takes a short vacation to see how the story unfolds as it hits, then comes back in with analysis and opinion wherein he ofters good advice about the situation to whomever can use it.
Get some sleep.