Check this out on Froomkin's blog
Froomkin links to the Craig Ferguson show's doctored Bush press conference clip: "Salon's Video Dog feature finds what it calls 'A brilliantly juvenile gag from last night's 'The Late Late Show with Craig Ferguson.' '
It's a clip from Bush's Monday press conference (here's the real video ) digitally altered to make Bush sound like he's drunk."
You gotta scroll to the bottom of Froomkin's page for the link, and suffer through the Salon ad to get to it, and then scroll down the Video Dog page to find it. But it's worth it.