DiFi clobbered in print by Kate O'Beirne of NRO
http://www.nationalreview.com/kob/obeirne200601100814.asp
DiFi is, I think, the "best" (most effective) antagonist so far. Leahy was next best. Interesting that DiFi's first line of attack is commerce clause and federalism, under the issue of gun control.
Now she's moving on to Roe, where I think her attack won't be very effective. He's good at explaining his methods and application of legal principle. She's looking for a specific example, which she won't get ;-)