Fox News is continuing to lose viewers in the valuable 25-54 demographic. In May 2006, the network delivered its lowest-rated month in "sales prime" since August 2001. "Sales prime" is measured from 7pm to 2am.

"These 7 hours are all sold at prime rates," an insider says. "This is what the business is based on. Their numbers are tracking with Bush's poll numbers... it should be an interesting trend to watch."

In May, FNC averaged 277,000 demo viewers in sales prime -- its lowest in 57 months. The network still beats all the other cable news networks in the time period.

In May, demo viewership for FNC's three primetime programs reached their lowest levels in several years. This chart, provided by CNN, shows the declines:



(I don't choose the pictures!)