Number of Republican presidential candidates who appeared for their party's first 2008 presidential debate last night: 10.
Number of times they mentioned George W. Bush by name: 1.
The single mention: In response to a question about pardoning Scooter Libby, Sen. Sam Brownback said: "Let the legal process move forward, and I'd leave that up to President Bush. And I think he could go either way on that."
Tim Grieve is a senior writer and the author of Salon's War Room blog.