The media was waiting to get as close to the elections as possible. Foley should have been outed a long time ago. This give the GOP very little time to pick a replacement.
Could it be the dims used a Republican pervert that they had long known about, waited to surprise King Karl with their own "October Surprise" - nah, they wouldn't use a gay man's indescretions to get a little gay bashing in, as they are the party that stands up for guys like Foley.