Doing a quick check of the current Google News archives, here's the scorecard on KNS mentions of the 2008 presidential candidates:

• Fred Thompson: 35 articles
• Mitt Romney: 30 articles (some about Thompson)
• John McCain: 21 articles (some about Thompson)
• Rudy Giuliani: 16 articles (some about Thompson)

• Hillary Clinton: 27 articles (two about Thompson)
• Barack Obama: 23 articles (three about Thompson)
• John Edwards: 20 articles
• Al Gore: 9 articles (two on Thompson, one Victor Ashe)

Republican mentions: 102 (56%)
Democrat mentions: 79 (44%)